The Duet Fixed Series features Flip Chip COB modules offering 60W to 300W and 5 different PPFD ratios between 450nm Blue and 600nm – 700nm Broadband Red which correspond to various plant growth stages. Each COB is structured using the patented DBR LED Flip Chip and our in-house proprietary low temperature bonding technologies, which further boost lighting efficacy and decrease thermal resistance between LED chip junction and the module’s metal substrate.