Has anybody ever seen or tried to use these 20 watt LED lights I came across at a lighting store. You have to wire them in. I think they are for outdoor use. But im sure they would be fine. Made in china... so I'm not sure. No one knew of there life span.
The spectrum is very important, and a proper grow light LED has heat sinks and fans along with multiple smaller (3-10w) diodes to combat heat, spread out the light and combine spectrums.
You should see how it goes maybe we can all learn from this experiment. Sent from my SGH-I747M using Grasscity Forum mobile app
I have a 20w grow light in the same form factor (below). I used it next to some other lights and found it to be ineffective. I suspect the white to be even less effective. I use white LEDs as "full spectrum" supplemental lighting, but I noticed there are some differences in their output. I use a $5 spectroscope I bought from Amazon to analyze their output. There are often dead bands in the spectrum. I have a similar 20w work light LED I bought a long time ago. Below is the output fro the spectroscope. It has a dead band from about 470nm to 480nm, but otherwise the spectrum looks good. Give it a try - at least you'll end up with a decent work light.
