There are all kinds of expensive beauty treatments on the market — various creams, zappy lasers, and fine mists of heavily-refined chemicals. For [Ruth Amos], a $78,000 LED bed had caught her eye, and ...
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 ...