Mine came with a mars hydro 300watt square light but the damn thing got so hot it was over 100 degrees and it burnt up my two plants on my last run. I installed it and checked a few hours later and thought the light was going to literally melt so I got a new one.
I'm using this light now
Not saying mars hydro is a bad light, just what I'm working with can't deal with the intense heat it gave out. It's gotta be stealth. I had the light at the recommended distance too.
I also have a 600 watt ufo but, I'm not sure if I'll be able to keep it cool enough. Even though it's been cool outside. You could probably upgrade if you have your box by the window.