CR Series Architectural LED Troffer, Power Rating: 22 WTT, Voltage Rating: 120 - 277 VAC, 50/60 HZ, Lamp Type: 2200 LM 3000 K 90 CRI LED, Reflector Type: Textured High Reflectance White Polyester Powder Coating, 20 GA Steel Housing, Mounting: Recessed, 47.7 IN Length X 23.7 IN Width X 4-3/4 IN Height, Power Factor: 0.9 Nominal, Temperature Rating: 0 - 35 DEG C, Control: Step Dimming To 50 PCT, Efficacy: 100 LPW, C/US UL Listed, UL924, DLC Qualified, For Airport, Corporate Campus, Healthcare, Municipal, Restaurant And Hospitality, School And University, Retail And Grocery