pjs420,
This light is a good grow light and will cover a 4X4 area. But unfortunately It's to hot. I run a 6 inch extraction fan on high & It can't keep up. My room air conditioner has to be on, when running this light. I would recommend this light, but I'd buy one that has the air cooled hood, which wasn't available when i purchased this one. . I've never used a 1000 hps, but I've heard they do better yield. but then you're using 370 more watts of elec.. if i had $$ to spend, I think I'd try the new quad boards with cobs. I think leds are now on the verge of competing, except for $$.
Good luck on your search !!