Whats up everyone, I read some posts about LED lights but this is all round EEUU. Does someone know about the Growing LED's that appear on Alibaba ? Their are cheaper but I'm afraid if their work or not. There is some full guide to read where I can learn about LED's efficiency and variables ? For example: 1- http://www.alibaba.com/product-detail/eshine-cob-grow-led-light-for_1855267368.html 2- http://www.alibaba.com/product-detail/360-watt-indoor-grow-led-grow_1882529334.html 3- http://bluesea-led.en.alibaba.com/product/1972756187-221874396/2014_hot_sale_high_power_led_grow_lights_315W_for_greenhouse.html 4- http://www.alibaba.com/product-detail/3w-Cree-CE-approved-5-band_678324930.html 5- http://www.alibaba.com/product-detail/Full-Spectrum-Znet9-400w-Medical-Flower_1430620596.html Thanks ! PD: sorry for my english xD