4 Watt UV G5 T5 4W Germicidal Ultraviolet Light Bulb UV-C 4Watt Anyray brand 4W watt UV UltraViolet G4 T5 Bulb Replasment for EcoQuest Fresh-Air Edenpure WGEP1000 Works with 110 Volt 120 Volt 130 Volt 220 Volt 230 Volt 240 Volt Replacement for 4 W Watt EcoQuest Fresh-Air Living Air US70059 B138 G4T5 Light Bulb Ideal for use for air , water purifying and used in a variety of photochemical processes Prevents DNA of germs to reproduce. 4 Watt UV-C