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Comparing the spectrum of CF bulbs with LED lamps, installing some LED lamps, and using a motion activated light switch. http://woodgears.ca/misc/led.html …
Blue light vs Red light. Which is better for vegetative growth??? Instinctively, the answer might seem obvious: Blue light is for vege! That basic mantra has been …
Basics of light spectrum, light (radiation) wavelengths, visible v. invisible light, the inverse square law, lux, watts and how ALL of these impact your marijuana …
https://en.wikipedia.org/wiki/Led