mmm between 3-4, and its 5,000 lumens per sq foot, do your floor print L x W (in inches) and divide by 12, times 5,000, thats how many lumens ya need
stinkybudz Reviewed by stinkybudz on . How many Cfls = 5000lumen? How many 23watt CFL's makes 5000 lumens? and is 5000 lumens used when flowering? Rating: 5