CR Series LED Light Engine, Power Rating: 40 WTT, Voltage Rating: 120 - 277 VAC, 50/60 HZ, Lamp Type: 4000 LM 4000 K 90 CRI LED, Mounting: Recessed, 42.6 IN Length X 10.6 IN Width X 4.3 IN Height, Power Factor: 0.9 Nominal, Temperature Rating: 0 - 35 DEG C, Control: 0 - 10 V Dimming To 5 PCT, Efficacy: 100 LPW, C/US UL Listed, DLC Qualified, For Airport, Corporate Campus, Healthcare, Municipal, Restaurant And Hospitality, School And University, Retail And Grocery