100 watt LED quantum board with SMD diodes and MeanWell driver. This is a good entry level work horse lamp and was used in tandem with an HLG 65 watt with Samsung LM301H diodes (total of 165 watts in the tent). This Bloomspect light is an entry level quantum board and the light spectrum tends to be a little harsh compared to horticultural rated diodes. The light spectrum is more plant friendly a little farther away, so I try to keep it fairly high in the tent (for my set up around 22" is the sweet spot). Highly recommend the HLG 65 for a good veg light and as supplemental lighting for flowering.