COB LEDs

COB (Chip-on-Board) LEDs — multiple dies on a common substrate under a single phosphor coating, delivering high luminous density and uniform light without visible spots. Power ratings from 3 W to 100 W, color temperatures 2700-6500 K, drive voltages from 9 V to 220 V DC. High efficacy (lm/W), CRI Ra > 80. Used in industrial luminaires, floodlights, downlights, studio lighting, and as halogen replacements in track systems. Require heatsinking and a constant-current driver.