I have used the EYE Hortilux, they don't have a very good track record for durability or long life ... my standby bulb is a standard high pressure sodium lamp, about $16, no big deal ... my research indicates the Hortilux doesn't work any better than a standard sodium for growing, at least, comparisons don't reveal any obvious differences ... dollar-wise, my money goes to the cheaper lamps ... :smokin: