Well I'm not sure about low lumins as the badboy by quantum is pushing 40,000. Lumins.a freind and i will be running afgan kush ryders , he will be using a 600 watt and I my t-5.should be a good experiment.I think t-5 must have the right color spectrum for marijuana as i've had great luck on different varietys of auto's. Nice tight buds and pretty decent yields.