Recycled LED Strip Grow Lamp

grabcad

This is a quick and dirty supplementary grow lamp made from old LED strips salvaged from custom vehicles. I used LED Strip SMD 5050-60 for my model, though the strips that I have are not quite the same. Mine are 40mm per module, not 50. There are 14 rows of 9-module segments, applied with new double-sided tape to a 1/8" aluminum plate. I have not bothered to measure the light output, as this is intended to be a supplementary light. No sense in throwing away old strips that still work. I added a 90mm fan on the back for cooling. Running at full power, the lights can get hot enough to burn out without the fan. The double-sided tape I used is probably not the best conductor of heat. The fan keeps the whole assembly at just above room temperature.Edit: I did some rough measurements of the output. Very rough. I'm getting about 5,000 lux. But also 200 PPFD, which doesn't agree with the previous figure, which would indicate I should be getting closer to 100. This is what happens when you don't use a spectrometer, or have a datasheet listing the spectrum of the modules you are using. I'm confident that I'm getting at least 50 photinos per square qbit-joule-second. Good for exactly 1/2 dandelion.