you better off going with COB's. Those panel led's just don't have the coverage and most of them are made in China and burn out easily. You better off going with a Timber Grow Lights kit or learn a little more any build one yourself from CobKits. I was thinking of buying a few of those panel blurple led's but after reading through the forums i am steadfast on the COB's now. There are a few panel led's that are good from tests that others have done but you going to pay heafty for them. Don't let the Wattage they listed as fool you. They list it at 450 Watts but actually put out something like 125 Watts of light. The COB's are actual Wattage listed.