15.03.2015
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CFL compact fluorescent grow lights are becoming increasingly common among small-scale, closet and tent marijuana growers for use in their grow rooms.
As CFL grow lights don’t pose any heat extraction issues ventilating your grow room on account of heat from sodium lamps and high intensity discharge (HID) lights can be very costly which makes them very popular for small marijuana grows. If you are interesting in growing your own marijuana with compact florescent lighting, there are some things you should know. Above is a picture of a CFL 300 Watt which is self ballasted, cool running grow light and you can get it in a choice of light spectrums with high lumen output. One product on the market is Eco-Lights which claim to be a ‘high powered compact fluorescent grow lamps (CFL)’ and usually are very good as a supplementary light to your main grow light.
When choosing your aquarium lighting, there's MUCH MORE to consider than just "WATTS PER GALLON".
In fact, the Watts Per Gallon is a VERY basic start, as this "rule" varies depending upon what is kept, what type of lighting, etc. Even then with the many LEDs available, we need to look at input energy versus output energy since often the same input in watts (joules of energy) can have a different output in PAR due to wasted heat energy in drivers, controllers, fans, etc. Products described in this article are primarily used because I and other professionals I trust have many years of real world experience with them.
No one should come away with a feeling of obligation to purchase these products, rather a greater understanding of aquarium lighting and their applications. For example: You cannot compare the output of a 150 watt Metal Halide to a 150 watt outdoor floodlight.
We also had actinic blue lights become available, these mixed with other lights made it possible in the beginning to keep some photosynthetic reef life, although initially these did not thrive. It is important to note that Aquarium Lighting is a complex subject, and this article has both more in depth information as well as some basics. For cynical readers of this article who claim I have a bias; obviously I do, but then this is based on much research and use.
In fact many of the Lighting Products I recommend and admittedly sell were not even available in the earlier drafts of this article since it was first written in the 1990s and added to the Internet in 2005, It was my research, consulting, & experience that led me to the products I now recommend!! Finally, it is still worth noting that even our best man made lighting is still far inferior to sunlight. The true definition of Kelvin is that it is a unit of measure of temperature on the thermodynamic (absolute) temperature scale. Higher color temperature lamps above 5500 K are "cool" (green–blue) colors, and lower color temperature lamps below 3000 K are "warm" (yellow–red) colors.
Kelvins, as applied to color temperature of lights, are derived from the actual temperature of a black body radiator.
An incandescent filament is very dark, and approaches being a black body radiator, so the actual temperature of an incandescent filament is somewhat close to its color temperature in Kelvins. Incandescent lamps tend to have a color temperature around 3200 K, but this is true only if they are operating with full voltage. Another consideration of the color temperature as applied to lights; color temperature does not take into consideration the spectral distribution of a visible light source. Plant chlorophyll absorbs light at wavelengths of 300 to 700 nm Kelvin rating of about 6400 strikes a good balance here, which is why this is the best Kelvin temperature for freshwater plants (and symbiotic zooxanthellae in corals in shallow, perfect conditions). Different nanometer wavelengths can be used to reach the same Kelvin Temperature; just as 4+5 & 1+8 both equal 9, so can different nanometer wavelengths be used for the same Kelvin Temperature.
Here are some observations made by me and others in the professional aquarium maintenance community, some of these are simple observations, while others were based on more controlled tests. The 6500 Kevin lamps have produced the best terrestrial plant growth and generally the better freshwater plant growth (as this Kelvin lamp generally has more of the 'red' nm spikes needed by "higher" plants, but still has some of the 425-500 nm blue).
More importantly if a natural tropical noon time sun 6500 light is utilized, you will get a better balance of all colors over a mixing of colored LED emitters so popular with planted aquarium keepers who like this red light over their red plants who also think this is better for the plants, which simply is not correct based on many years experience utilizing many different light sources. This Kelvin Lamp can also work with SPS, LPS placed high in the tank water column (nearest the lights) based on the symbiotic zooxanthellae needs found in these corals. The 9000-10,000 Kelvin lamps also achieve good growth rates, although slower than the 6500 K bulbs in shallow aquariums. This does not mean that a certain Kelvin bulb is necessarily "better" as factors such as "lumens per watt", watts of energy used, focused lumens, PAR, and especially PUR MUST be considered as well. This applies to aquariums when we consider the light spectrum and how it applies to our aquariums individual needs: Red light is the first to be filtered out and can only penetrate a short distance. Most higher plants need a balanced PAR light range which includes the blue and two red spikes required for photosynthesis (see section about PAR, PAS & PUR).
The Nanometer scale and Kelvin temperatures come together when applied to aquarium lighting this way; Natural sunlight on a clear day registers at 5500- 6500 Kelvin degrees.
Most photosynthetic marine invertebrates should be kept with lamps of a daylight Kelvin temperature from 6400-14,000 K (higher Kelvin with deeper specimen placement, not necessarily tank depth). Photosynthetic invertebrates (many corals, anemones, clams, nudibranch, etc.) also need more blue (400-490nm) than "higher" plants especially as tanks increase in depth, such as the 465-485 blue spectrum. It is noteworthy that Fluorescent and even more so incandescent lights produce a lot of yellow and green nanometer light, which research indicates is mostly wasted energy in terms of the needs or freshwater plants and SPS Corals. A measure of the intensity of light (referred to the photometry of light), one lux is equal to one lumen per square meter.
While this measurement only includes light visible by humans, this can still be a useful tool for freshwater plants & most corals in marine reef aquariums. When the Lux is not enough, the zooxanthellae (inside of corals tissues) do not create plentiful oxygen. The minimum light intensity should be no less than 3,000-lux when it reaches the deepest part of the aquarium. PAR is an important and accepted starting point to estimate light energy, but should NOT totally override the also important related Useful Light Energy (PUR which literally stands for Photosynthetically Useful Radiation).
UVA to 550 nm contains the absorption bandwidth of chlorophylls a, c?, and peridinin (the light-harvesting carotenoid, a pigment related to chlorophyll). Photons at shorter wavelengths (UVC) tend to be so energetic that they can be damaging to cells and tissues; fortunately they are mostly filtered out by the ozone layer in the stratosphere. This results in continued growth of a plant, algae, zooxanthellae and the ability to "feed" & propagate.
Besides the obvious depth penetration, it is also noteworthy that most zooanthellic algae need more of the blue spike than "higher plants", hence the popularity of actinic lights for reef aquariums.
Planted Freshwater Aquariums: It is also important to note that freshwater algae also prefer more of the "blue" light so the excessive use of actinic blue lighting should be avoided in planted freshwater aquariums, as well the use of more blue nanometer or higher Kelvin Daylight (14,000K or especially 20,000K) should also be avoided in all but the deepest tanks or in tanks with heavy amounts of C02. Currently accepted numbers measured as µMol•m?•sec (also referred to as micro mols or mmol) are 50 mmol for most plants or corals such as Nemezophyllia, while Acropora can require higher PAR outputs. HOWEVER, keep in mind that a PAR Meter is NOT accurate in important light energy spikes WITHIN the 400 to 700 nanometer range, so while one light might measure a higher PAR mmol reading, another light might be still superior due to the more important PUR & PAS output. Looked at another way, if you were to increase the number of emitters of the XT-E Fiji Blue to equal the XB-D 6500K (approximately 37%), would you now suddenly be able to say this light would work perfectly over one's high light planted aquarium? Some organisms, such as Cyanobacteria, purple bacteria and Heliobacteria, can make use of the unusable light discarded by the plant kingdom, in this case, light outside the PUR range required by plants, which is why Cyanobacteria thrive in lighting conditions that include more yellow light energy. PUR cannot be dismissed as some lighting experts have attempted to do based on their short time in the professional aquarium keeping industry, as we have already clearly established (as per the Overview section) that we found that once more precisely tuned spectrum fluorescent lights became available, we could grow aquarium plants more efficiently and with some advancements, this made the difference of not keeping photosynthetic marine organisms at all!! While PUR also encompasses this too it also can simply refer to all light spectrums within PAR with emphasis on the more efficient spectrums rather than the less efficient spectrums such as yellow and green. What is noteworthy is how much radiation falls outside the PAR, in particular the longer frequency wave lengths going into radio waves. It is therefore reasonable to attempt to duplicate the sun's radiant energy that reaches the earth's surface which the Daylight (6500K) LED emitter is reasonably close when compared to the other light sources.
There has been a lot of confusion about this subject, especially when considering LED lights, as many sellers and aquarium keeping personalities such as "Mr. Many people will think PUR is good in theory, but think it cannot be applied to every single species we are trying to grow under water.
Another misapplication that is often applied in certain aquarium keeping cicles where they have apparently not done their research into the history of aquarium lighting as per PUR is to compare a high PUR light to a lower PUR light of much higher input wattage. As an example, I have seen the Ocean Revive LED of 120 watts that is a larger fixture with a larger footprint compared to an AquaRay NP 2000 Reef White that only has 30 watts, then state the AquaRay is under powered. A little history: since I have been in the industry on the research and aquarium system design side since 1978 (longer if you count my basic hobby years). Even the best of fluorescent lights that are a Kelvin temperature of 6500K, use a percentage of their light energy in the yellow and green light spectrum which is mostly useless for aquarium plants or corals, although some green light can actually improve growth when less than 24% of overall light spectrum (Reference: Ref.
This picture is taken with a camera that filters out certain wave lengths allowing for a better viewing of the difference, which is otherwise not easy to discern. Otherwise the light output appears the same, although this is still important when you consider, this is achieved with only 12 watts of LED vs 30 watts of Compact Fluorescent lights.
Think about how mixing all paint colors will produce black, while the mixing of all light energy produces white. I have noted, a dozen "hardware store" warm & cool white fluorescent lights can provide adequate lighting for a planted aquarium and even basic reefs.
The implications for us as aquarium keepers is this process can often be the result of new light systems until our plants, photosynthetic corals, etc. Some signs we may see is adapting, which will stall growth and for plants, leaves will die off and then replaced. The international unit of luminous flux or quantity of light used as a measure of the total amount of visible light emitted.


For example a T12 light that is rated at 20 watts with a total lumen output of 800 lumens has a lumen per watt output of 40.
With this focused energy a "high end" LED often requires half the lumens (or often even less) to provide essential light energy to plants, corals, etc.
This is why the old rule: "3-5 watts per gallon" can be deceiving, and this rule is only a starting point at best. Keeping this in mind the average T12 has a lumens per watt rating of 40, which means you would need half as many watts of a bulb that produces 80 lumens per watt (assuming PUR & other aspects are equal). The term "watts per gallon" is getting more archaic with the newer T-2, T-5, CFL, the SHO, and especially the new reef compatible LED lights. Interestingly (& sadly), many lower end aquarium LED lights are matching their lights to CRI ratings.
The picture below is a good example of marketing using CRI where by the picture on the right uses a halogen bulb source touted as having a "spectral match to daylight" and a CRI of 98. To be blunt, CRI is NOT a parameter that is important in determining the best aquarium light, but it is included here since many mistakenly tend to consider it an important parameter, in fact most lights sold with CRI ratings prominently displayed are intended for home or industrial use, NOT aquariums! Spring and summertime are the best times of the year for anyone but even better for the outdoor grower enthusiasts around the world.
Backyard Gardens Backyard gardens provide the easiest access to your plants, giving you the chance to give them everything they need for maximum growth.
Greenhouse A greenhouse is a compromise between indoors and out,greenhouses protect your plants from the worst of weather such as hard rain and strong winds, while at the same time providing all the natural sunlight the plants need. Rooftop Growing If you live in a home that has a tall rooftop or terrace that is not visible by peering eyes you can do what many new growers are doing world wide, growing on their rooftops. All in all, I hope you can you this piece of information to your advantage, and Happy Growing! A greenhouse is a building structure, especially constructed to grow or cultivate plants in controlled conditions of light, temperature, ventilation and humidity. Like other construction works, the first step in building a greenhouse is to decide the correct location.
Greenhouse frames are available in various shapes such as gothic, quonset (circular frame), A-shaped and rigid frame (vertical sidewalls with a slopping roof). The foundation of greenhouse depends on the weight of the coverings; permanent foundation is recommended for glass materials. All types of greenhouses require ventilation, air circulation, water irrigation, humidity regulation and pest control. If there is an extra space, you can attach a small room for storing fertilizers, organic manures and other gardening tools. We have seen many people try hydroponic gardening once or twice and fail, never to try again.
If you have yet to hear about hydroponics, you should know that it simply is a way in which to grow plants without the use of soil.
There have been experiments of growing two identical plants side by side with one using regular soil and the other using hydroponics and the comparison is astounding because the hydroponics plant grows faster, stronger and better than the plant grown in typical soil. You should probably know that hydroponics is nothing new, even if it is the first time you have heard about it, the practice has been going on for centuries, but recently it has been getting more attention because of the fabulous results many people are having within their greenhouses by implementing the Greenhouse Hydroponics LED Lights system. One of the reasons is because by using hydroponics, you can control the exact amount of nutrients your plants need in order to grow abundant. The easiest way to use hydroponics in a greenhouse is by using a drain and a flood system, which is not difficult to install. Therefore, it is flooding the plant containers with the nutrients and water and moving it back out. In addition to the drain and flood system, you will of course need the nutrients for the various plants and vegetation you have inside your greenhouse, which are added to the reservoir in the specified amount deemed necessary by the manufacturer. The bottom line is that using hydroponics in your greenhouse can be a very rewarding experience because takes all the guesswork out of what your plants needs and gives them exactly what they need, when they needed. The key to establishing a successful hydroponic garden is to implement proper lighting that will let you grow vegetables, fruits and herbs all year long.
LED grow lights have much higher amount of USE-ABLE light per watt than HPS or MH indoor grow lights and they last longer – up to 10 years in fact. There are many different types of LED grow lights and it is very important to choose the best one for your hydroponic garden. Uses 90 watts of power that are more intense and result in faster growth rates than HID lights. All of the light is directed at the plants and the light that is emitted matches the spectrum of light necessary for photosynthesis. Produces thicker vegetative growth, larger blooms, and increased yields over equivalent HID lights. I have been told by a few people that they have experienced less than optimal results from their 1W chip LED grow lights. While some people use natural sunlight, others who want indoor gardens find that one of the best choices for lighting are LED grow lights. Wiki infoFutures studies (also called futurology) is the study of postulating possible, probable, and preferable futures and the worldviews and myths that underlie them. Take a minute and sign up to enjoy all of the great features and content on the 420 Magazine Forums. Reducing heat along with electrical demands allow for serious growers to increase the amount of light they provide for their plants.
There is much discussion here about LED's ability to perform on a level that compete commercially. If you'd like to get the additional items you've selected to qualify for this offer, close this window and add these items to your cart. Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag.
You have read and agree to the Global Shipping Program terms and conditions - opens in a new window or tab. Import charges previously quoted are subject to change if you increase you maximum bid amount. However, the new CFL (compact fluorescent lights) grow lights that between them cover the full visible light spectrum have made them a viable alternative.
They are energy efficient and produce very little heat so you can place them as close to your plants as a few inches away.
Often CFL grow lights cover one part of the growing range, either vegging or flowering and often do not cover the entire light spectrum required for high yield marijuana growing.
Like many fluorescent grow lights they are available in both the blue and red spectrums for vegetative and flowering growth respectively. This is an depth 'aquarium light info' article with basic & advanced applications that is regularly updated.
Back in the days of buying your fluorescent cool white or warm white T12 or T8 lights (often even at hardware stores), this 'rule' was quite accurate and useful since we were more comparing "apples to apples". Higher frequency "red" light energy is quickly filtered out in water, and many light energy requiring plants, corals, etc. Absolute zero is where all kinetic energy (motion) in the particles comprising matter ceases, and they are at complete rest.
Which is the concept of color temperature based on the relationship between the temperature and radiation emitted by a theoretical standardized material and termed a "black body radiator". When a lamp is dimmed below its full potential, its filament is not as hot, and it produces less light. In cases where a light source, such as a fluorescent lamp, arc-discharge burner, laser, or gas lamp, do not have a spectral distribution similar to that of a black body radiator. However the many tests and observations show that when used alone, except in tanks over 24 inches, the growth rate of SPS corals can be slowed or even come to a standstill with 20,000 K lamps.
It is this wavelength difference that allows short-wave x-ray to pass through walls, while longer-wave visible light cannot pass though the same material; short-wave ultraviolet and x-ray can destroy DNA in living microorganisms and breakdown organic material while visible light will not. Kelvin temperatures less than 5500K become more red and yellow and the higher the Kelvin temperature the more blue the light is. I should point out that while the terms PAS & PUR have a lot in common, there is a difference in that PAS is most simply stated as the spectrum where "chlorophyll is much more efficient at using the red and blue spectrums of light to carry out photosynthesis.
Or stated another way, the portion of PAR, which is more efficiently absorbed by plants & zooxanthellae photopigments thereby stimulating photosynthesis. There is much that we also do not know, since photosynthetic plants, zooanthellic algae, etc. However if you match input wattage, you will in fact get much more raw light as well as useful light if four of the AquaRays were to be compared (which in reality, you would likely not need this many to do the job). We as humans may notice this to some degree, however we do not have the ability to pick out particular colors such as a honey bee can. The results is a brighter light that looks good to us, often brings out colors to our human eyes, but are actually much less efficient for plant and especially coral growth. Colors viewed under sources with line spectra such as mercury, GE Multi-Vapor® metal halide or Lucalox® high pressure sodium lamps, may actually look better than their CRI would indicate.
Indoor and outdoor growers alike know that there is nothing better that a long day sativa harvested and smoked at the end of the year. The easy access also lets you take care of potential harmful problems such as insect infestation, mold or dehydration before it turns fatal.
Growing on the rooftops or terrace elevates the plants towards the sun, in-turn creating bigger buds and heavier sugar production.
Based on the climatic conditions, you can select a proper site that receives maximum sunlight.
You can create a raised base, so as to prevent draining of rainwater inside the greenhouse. While speaking about the coverings of greenhouses, glass and fiberglass are the most durable materials that provide maximum warmth and humidity. For providing ventilation, simple windows can be created at a specific height of the greenhouse.


Even after reading advice like this myself, it took two years of making mistakes and learning things the hard way before I changed my approach and took these lessons to heart. Having a plan means knowing your plants nutritional requirements and photoperiod requirements and having the supplies and equipment necessary to meet those needs.
Know how strong the nutrients should be each week of your plant’s life, and know what the nutrients should consist of each week. Don’t try to improve your results by adding a bunch of extra things to your nutrient reservoir (at least not at first). After using the same nutrients for two weeks, you need to start over with fresh water and fresh nutrients. Two keys to success here: First, the lights need to be turned off and back on at exactly the same time each day (tip- use a digital timer!). You will need a completely dark area, a high powered fan, an adequate light, a hydroponic gardening system, hydroponic nutrients, an oscillating fan, a TDS meter (or EC meter), a pH test kit, and possibly an air conditioner. It is truly an amazing method to use inside a greenhouse because it works so well and it means less work for you keeping the soil because there is no soil to treat or worry about. There is no waste and the plants are getting exactly what they need and therefore, grow better and stronger than growing them in soil alone. The food and drain basically flooding the water where the plant containers are and then draining it back out. You will need to have a reservoir for the water and a pump so that the water can circulate in and out of the plant containers.
The nice aspect to the nutrients being added to the reservoir is that everything in the greenhouse can be fed from the same food source, so this cuts down on costs as well.
Below is a quick review on the benefits of LED grow lights and a special opportunity for a Free Consultation. The benefit of using a Tri-band Spectrum is that the plants absorb the key spectrum of red, blue and orange light. Without fail the number one reason for failure is that they bought cheap, discount 1W chip LED grow lights that were horribly underpowered. To start out, 3W chip LED grow lights are a bit more expensive than their HID light counterparts, however, that gap is shrinking all the time and is easily recovered (and then some) in reduced electricity bills and by not needing expensive heat removal systems or ballasts. In the above example, you would need only one 300W LED grow light with 3W chip to cover over 45 square feet and it would have the power to penetrate a leafy canopy if growing taller plants. They are more economical, energy efficient and can be controlled for best results in your hydroponic garden. Our newest and largest unit, the Dominator 2xXL is able to proved your canopy level 2' away with 70,000 lumens and 1400 µmoles. Three+ years of research and development specifically on cannabis, our lights are designed to give you big Lush buds, better taste, aroma, density and larger yield.
If you reside in an EU member state besides UK, import VAT on this purchase is not recoverable. CFL grow lights in the 5,000k to 6500k range spectrum offer lots of blue light which promotes plant growth. This is where the "classic" definition of Kelvin, and how it relates to light, come together. You can figure lumens per watt by dividing the lumens your lamp lists by the wattage the fixture lists.
If there is no change in appearance, the source in question is given a CRI of 100 by definition. It is very weak in blue, as anyone who has tried to sort out navy blues, royal blues and black under low levels of incandescent lighting. However, some exotic fluorescent lamp colors may have very high CRI's, while substantially distorting some particular object color.
In my professional opinion there is nothing like tending to a beautiful crop, watching your tiny seedlings mature into lush trees.
For patients with their medical license backyard gardens have been increasingly popular, returning the plant back to where it should be grown along side other backyard crops like tomatoes and greens. Many growers use a method called light deprivation where they can induce early flowering by covering the greenhouse with tarps everyday to create the 12 hours of light and 12 hours of complete darkness.
The downfalls of the elevation is the wind will be much stronger and the temperatures will be much hotter, causing your plants to dry out faster. Specific crops and salad vegetables can also be grown for commercial production all the year round, irrespective of the off-seasons. If possible, build the greenhouse in the south or southeast to the house, otherwise you can orient in the west or southwest direction. Once you have confirmed the location of greenhouse with the necessary features, you can purchase the structural requirements for building a greenhouse such as frames, coverings, foundation and flooring materials. Regarding flooring option, permanent flooring is not preferred as it remains wet for a prolonged duration.
Small fans can be used for the air circulation purposes; depending on the size of greenhouse, you may need to fix several fans. Actually having a written week by week feeding schedule, complete with nutrient strengths and nutrient changes, would also be very helpful.
Many plants need more Nitrogen at first, than switch to needing more Phosphorus to produce fruit or flowers.
Start by feeding just the basic three part nutrients until your hydroponic gardening system is working smoothly and producing excellent results. The most beneficial way to do this is to have two nutrient reservoirs, one with nutrient solution for your hydroponic gardening system and one with plain water for your next nutrient solution change. Protect your roots by maintaining your nutrient solution properly, by using two hydroponic nutrient reservoirs (one with plain water for your next nutrient change), and by minimizing the amount of light that comes in contact with your nutrient solution.
A centrifugal fans or squirrel cage fans are an absolute must, but if you use LED grow light, don’t need to buy an extra fans. Second, the plants should be kept in absolute complete UNINTERRUPTED darkness during the dark period. The hydroponics systems are definitely becoming more commonplace in greenhouses than several years ago.
In addition, they produce a fraction of the heat of HID setups and therefore do not require cooling fans. It is easy to gravitate to the less expensive models if you are on a budget but don’t! We have entered an era where we will be able to grow plants with the same spectrum and intensity of direct sunlight!
All this said, the only term I personally made up to best explain to my clients, which paid for my service was "useful light energy". Since this is my favorite time of the year and I am getting ready to plant my crops, in this article I will give you my top locations for growing marijuana outdoors. For the rest of the growers growing in backyards still includes the risk of getting caught. In addition to regulated environmental conditions, the spread of plant diseases as well as pests are controlled in greenhouse.
For cold areas, the greenhouse should be insulated or installed with heating equipment in order to retain maximum temperature inside the greenhouse. Irrespective of the climate and outside environmental conditions, you can harvest your favorite vegetables or enjoy the beauty of flowers. So, follow the tips below to shave years off of your learning curve and skip right to excellent results!
Either high pressure sodium lights or metal halide lights will do a very fine job and are the most popular choices.
Would you prefer an all-in-one grow light solution or would you like your color panels separate to allow tweaking during specific stages? Put a Lush LED in your garden today, and you will have faster growing healthier plants by the end of your first week! They run for longer, take up less space and deliver a lot more intense light equivalent to a HPS but about half the electricity and like the CFL’s do not require a ballast. This explained it well, based on feedback from clients and others in the industry despite others attack upon this term. So if you have a place that is secure from neighbors and gets plenty of sunlight then you’ll be on your way to a perfect harvest.
Considering these advantages, many hobbyists and gardeners opt for growing plants in greenhouses. After completion of making all these arrangements, you can place plant racks at a particular places inside the greenhouse for keeping container plants. One word of advice for growing plants in greenhouse is to isolate any diseased plant, as it can spread easily to the other neighboring plants. Once your hydroponic gardening system is up and running and producing excellent results, than you can try mixing up your own special plant food if you like. The second reservoir allows the water to dechlorinate and come to room temperature, both protecting your roots.
For various reasons I recommend a 600 watt LED grow light 3w, check out How to choose the correct lighting arrangement for hydroponic gardening. Above all, LED grow lights do not require other equipment such as ballasts and reflectors like most grow lights do.
We offer a 90 day money-back guarantee, three year warranty and if your light needs repair, we will ship you a replacement light while yours is being serviced to minimize your garden's down time.
Our lights have a ten year life span so the light repair is rare, but it's for your peace of mind.



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