It will I had 2 plants that vegged under them almost entirely and they turned out good, was just smoking one of them a few minutes ago, as a matter of fact it was the bud in the pic above... The addition of these lights to HPS in flowering is where you will see the big difference, as the plant produces more THC to protect itself from the UV-B output, as for the higher lumen output, that is all in the bulb, a good Phillips, or Sylvania bulb puts out about 8,000 lumens, but when you get around to flowering, get a 150w HPS security light and rewire it to be remote ballasted. This will help the yield greatly, it's only about $80, and you will get your money's worth for it in bud production, as you will with any other HPS, but enough rambling for me tonight...

Peace

L0rdsOth
lordsoth666 Reviewed by lordsoth666 on . U V B lights :cool: the wife has two large Iguanas for breeding she has to have (( :confused: U V B bulbs )) on them to keep them in g00d and health I have plants in there and the plants that are the :p close to the U V B are healthier then the ones that are back from them the ones that are close have more T H C . then the ones in back is what we have for the Iguanas.. :) :rolleyes: Rating: 5