LED, or light emitting diode therapy, is a skincare treatment that uses varying wavelengths of light, including red and blue. NASA originally developed it for plant growth experiments on shuttle ...
There are flashlights and then there are FLASHLIGHTS and this DIY 72,000 lumen bad boy is definitely the latter type of flashlight. It was made by a guy called Samm Sheperd and it uses eight 100w LED ...
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