3 years ago they would have called that a "300 w" light (i.e., for a 2'x2' growspace). Now it's 1000 w? There's some misleading marketing right there. Not saying you can't grow under it.
When I bought my cheap LEDs 3 or 4 years ago, I bought 4 for around $50 each (each of slightly different configurations), and only 2 lights work good in veg by themselves, and only one works great in either veg or bloom. So, each better light cost $100. I've been wondering about trying a light similar to the OP's, but I'd rather just get an exact replacement for the one that I have that works great. Unfortunately, it doesn't appear to be sold any longer. So, I have to gamble on an unknown again? Maybe I'll just make do with what I already have.