I have 5 100 watt cfls in a 2'x2' space with 4 plants. Right now they are vegging. I just set up everything a month ago. I don't know how many lumens each cfl has, but it seems to be working. I'm going to see what happens in another month, hopefully by then I will be able to send some pictures. This is my first time growing under any kind of lights. Can't wait to see what turns out.
kushlvr Reviewed by kushlvr on . How many Cfls = 5000lumen? How many 23watt CFL's makes 5000 lumens? and is 5000 lumens used when flowering? Rating: 5