Voltage (V) 120-347V AC 50 / 60Hz Wattage (w) 20W / 30W / 40W Beam Angle 110° Bulb Type LED Lumens (Initial) 2590-2860; 3490-3860; 4390-4850 CRI 80+ Color Temperature (K) 3000K / 3500K / 4000K Length (in) 23-3/4" Width (in) 23-3/4" Finish White Power Factor >0.95 THD: <20% Dimmable Yes UPC 771250271143 Start Temp. (Min) -20°C (-4°F) Start Temp. (Max) 40°C (104°F) Life Hours 70% @ 50,000 hrs UL Listed cETLus Is DLC Approved Yes