2x Original Jebao STU-75watt UV light bulb, Jebao STU-75W UVC Clarifier UV Lamp AC 110-120V / 60Hz 75 Watts Length: 33" - Base: 4Pin Lamp T5 Ceramic Base [4pin on one End] Glass Type: Quartz Glass Tube - 75W - Life: 10,000hrs - Provides Superior Water Purification compatible for use with Jebao 75W Clarifier STU-75