I've used many different name brand LED lights over the last 10 years. I've been using the HLG 600 RSpec for the last 5 years. The HLG lights have really outshined the others by producing frosty dense buds.
Very bright. Plants seem to like it. Gets hot, a fan is a must.
I'd like longer cables so I can move the power supply outside the tent. That's not possible out of the box.