Atlantic UV 05-0261-R GPH456T5L - 22W - G5 Base - 456mm Watts_3.5 It has a part number

It has a part number of 05-0124-R

It has a part number of 05-4288

This product is an an Ushio G64T5L Quartz Germidical UVC

This product is an American Ultraviolet GCL-48 OEM germicidal replacement light bulb

It has a part number of 05-0922

Atlantic UV 05-0261-R GPH456T5L - 22W - G5 Base - 456mm Watts_3.5 It has a part numberThis product is an Atlantic Ultraviolet Preheat Ultraviolet Lamp. It has a part number of 05 0261 R. Preheat germicidal lamps are operated by a preheat start circuit that employs a relatively compact and economical ballast. The preheat circuit requires four electrical connections per lamp and a slight to moderate delay is needed to start the lamp. Some modern electronic ballasts are capable of instant starting a Preheat lamp.