The at200 pulls 170 watts from the wall or there abouts, I run 14 degree lenses and keep it 18inches above the plant. Yep all buds are currently grown with basically just this Apache led.
I stopped using the amare due to the height restrictions it put on me and it's tendency to create hot spots, I don't think it's a bad light, it just wasn't good for my space with height being limited. I'm not really a huge fan of cobs, from what I've seen they create hot spots. Even without lenses. I prefer the 3 watt array of the Apache, it's very even coverage of light.
When you are running 24 hour light cycles having those COBs beaming down on my plant was detrimental or at least i didnt like it. But anyways that's just my preference.