The CUBE is a featured Architectural Linear fixture. Housing is formed by cold-rolled steel with a highly reflective die-formed white painted steel reflector. The snap-in acrylic lens has a matte finish and a diffuser (.125” thick) which is removable for LED module replacement. It is used for multiple applications such as commercial, general office, banking, retail and educational environments.SPECIFICATIONS: LEDHigh quality arrayLEDsLM80Color Temperature: 2700/3000/3500/4000/ 5000 (K), and tunable white -275 (2700~5000K).Color Rendering Index: >80 (optional>90).Nominal Lamp Life: 100,000 hours.Reported L70 hours: +60,000 (55°C).ELECTRICALHigh power factor electronic driver, operate from a 120 ~ 277 Vac input range, 50 / 60 Hz.Features included over voltage protection, surge, short circuit protection and over load protection.Power Factor: typical > 0.95, THD