Features Samsung LM301H EVO LEDs each rated at 3.14 µmol/J PPE the highest efficiency of LM301B LM301H and Bridgelux 3030 chips. Programmed with schedule controls sunrise/sunset dimming and 10 brightness levels; UIS platform-compatible for WiFi app control. Bar-style fixture with algorithmically spaced diodes optimized for even coverage deep canopy penetration and hotspot reduction. Passive cooling LED driver is removable to balance heat dissipation; also supports daisy-chaining with up to 80 grow lights. 3 x 5 ft. Veg. Coverage | 2 x 4 ft. Flower Coverage | Samsung LM301H EVO Chips | 840 Diodes | 280W | 1745 PPFD | ETL Cert. 5021417 -