GrowBright 600 watt HPS Bulb vs Hortilux Super HPS Lamp 600 Watt

it matters more how fast u rotate your bulbs... degredation. go look that up. alot of experts tell me not to buy expensive HPS bulbs.... however. i love my Eye Hortilux Super HPS 600. its very durable, and the color seems perfect for flower.

I would also have to agree that Ushio is the best. Its quite spendy but at an initial 97,000 lumens, you cant go wrong.