21.05.2014
You must have JavaScript enabled in your browser to utilize the functionality of this website. We will action your order either the same day or the day after you place it with us, assuming it is a working day. We will deliver to you either by Royal Mail, or by parcel carrier, according to weight and value of order. In the event that we are out of stock for a particular item, we will send everything but that item to you. We have been trading online now for over 10 years and have a feedback score of 4.8 out of 5. Not all ultraviolet light tubes will properly expose negative film or photopolymer materials. GCell is the first choice for electrical engineers and product designers seeking a indoor Dye Sensitized Solar Cells (DSSC) that are flexible and boast superior low light performance. GCell can be incorporated into a wide range of indoor and portable products to provide power for refuelling rechargeable batteries, super capacitors or directly powering almost anything that uses a AA-cell disposable battery. The output of GCell, like all other indoor solar cells, will differ depending on the light source to which they are exposed.
GCell works in a wide range of indoor lighting conditions from low light conditions (50 lux) to dimly-light living rooms (200lux) through to brightly-lit supermarkets (1000lux). Indoor light is already diffused particularly with florescent tubes, so in affect the light doesn’t have an angle. Even in outdoor lighting conditions the photoelectric conversion efficiency (PCE) of GCell has no dramatic changes according to the light angle.


A Texas Instruments whitepaper identifies four potential energy harvesting technologies and suggests that solar cells are likely to be the preferred choice for most applications. The analysis compares thin film solar cells, including dye sensitized, organic and inorganic; namely G24’s Dye Sensitized Solar Cells (DSSC), Konarka’s Organic (OPV), Amorphous Silicon (a-Si). The paper states that the majority of portable and mobile devices are primarily used in indoor applications and therefore assess which solar technology is the most appropriate for energy harvesting applications by measuring their relative performance under low light conditions. In a 200lux test procedure, described as family room lighting conditions, the paper reveals that the average indoor lighting is typically less than 500 times lower than the outdoor conditions that the majority of solar cell characterization studies are reported (1000Wm-2). The Texas Instrument analysis demonstrates that DSSC shows higher power density across indoor conditions relative to a-Si and OPV solar cells. The whitepaper concludes that DSSC under indoor conditions for energy harvesting applications is a better candidate than a-Si and OPV in terms of maximum power density.
A special fluorescent lamp made with a dark blue hard glass filter which absorbs practically all visible light, but freely transmits the U.V. Once the item comes into stock, we will then complete your order, at no extra delivery cost to you. This shows our determination to ensure every order is processed as quickly and efficiently as possible. This is done in quite a simple manner by the UV filter as it will be part of where the water flows in your system and so all water will pass through it as some point. This is because photo electric conversion efficiency (PCE) changes with the respect to the wavelength and intensity of the light. The spectral response of GCell is similar to that of the human eye, infrared and ultraviolet have little effect to its energy harvesting capabilities.


Due to the diffusion there is no real effect on performance based on the angle and only the light level on the surface will affect the performance of GCell.
Adjusting the incident angle from 60° to 90° will not reduce the efficiency by more than 5%. If you need something urgently give us a call to check stock - Please have the item reference to hand as this will help to speed things up. Many people will install these on the inlet to their filter if a sump or canister filter is being used. This unit of illuminance is based on the spectral response of the human eye ie the visible light. The system itself has a UV bulb in it which will shine on the water as it passes through.It is important when choosing a UVA steriliser that you get a unit specifically for the flow rate and aquarium size you are installing it on otherwise the available surface area will not be large enough to eradicate the unwanted bacteria and algae.
A UVA steriliser may also have a negative or neutralising affect treatments you may add to your aquarium so be sure to switch it off if you are treating your fish with any chemicals.The last thing to note is that a UVA steriliser bulb would need to be replaced every 6 months so this is a cost consideration worth taking in to account if you are considering purchasing one. It can potentially be dangerous and should be noted that you must never look at the UV steriliser bulb when it is on as it can be very harmful to you!In summary we believe that in a freshwater aquarium it is unlikely you would need a UVA steriliser however it may be worth getting one.



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Comments Ultraviolet lighting company

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