About 2 weeks ago, I set out to research grow lights to supplement the scarce natural light we get here at 51°N. But after looking at quite a few offers, I decided to DIY it. My requirements don't ...
Last year, we saw perhaps the brightest flashlight ever made, a DIY 1000W beast composed of ten different lights which can throw out a combined 90,000 lumens. How do you improve on that? You make it ...
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