ok i have to say something here, people saying led pannel sucks are partly right, but its because of all the bullshit sellers (like the one you want to buy from). A good led pannel will have 1w power per led minimum, the best being 3w per led (dont look at one, you gonna go blind instantly lol), if its anything lower than that, or worse, not mentionned, dont ever fuckin buy. You're gonna have stupid flashlight leds that are worth about 2cent (real price) each and you're gonna pay 100$ for 200 of these put together lol . also try to get a 8:1:1 or 9:1 or 8:1:1 or 8:1 ratio for your lights, its better for the plant
Here is a good led light:
http://www.aliexpress.com/product-gs/309716162-Hot-selling-goods-Free-Shipping-90w-UFO-led-grow-light-wholesalers.html
see the power input is 90w and on your fuckers website the imput is.....13w LOL
So i dont know but i think someone shoud sticky something like that cause led is good when you just check your shit before buying. i didnt buy one cause im not paying bill and i have no temp problem, but it can give good results on lower power...its betta for the planet! grow green! haha