......hmm. ive got a couple 240 blackstars...1 blackstar doesnt have as much coverage as one of my 150 sunmaster hps's...but togeather in altranating row 3 150 hps and 2 240 blackstars they cover a six by 4 table almost as well as my 1000 watter, the bang for yer buck in led is the savings on power..running 250 watts less with the same coverage, less heat /less bulbs to replace..its win win,,, in my opinion tho , the led works best at 50/50split with hps ... with that it seems to me to enhance these smaller hps's i have so the plants grow like im using way more light ..i tried flowering under led alone , it wasnt till i added the first hps (150 watt) that i started to get more traditional bigger tighter bud, the side of the first grow that recieved mostly hps was bigger ..alot bigger, but now i have my ratio down....its alll goood.....im new to these smaller micro-ish grows..its been a learning curve in maxamizing every potential...light bieng the obvious key.....so in summery i think led is the best thing to come to growing since hps, but togeather they are frikken awsome...