shimbob
Well-Known Member
Well I'm totally perplexed. Cheapo lux meter came (Pyle PLMT15), and it measured the following:Got a cheapo lux meter coming in the mail for some cheapo measurements.
At 15" it was 34.6k lux
12" 38k
8" 43.3k
6" 47.3k
3" 49.8k
So using the conversion factor of 69lux/ppfd, that means at 3" it's 720ppfd.