Description UV Sterilizer Light is an effective tool for eliminating microorganisms such as viruses, bacteria, mold and yeast in the air and impurities in the water. You can use this UV light for your aquarium, refrigerator, air purifier, microwave, etc. This UV lamp is for places such as hospital, office, school, restaurant and much more. Features - Quartz glass tubes, G23 socket. - Total length: 4 inches. - Watt: 5W. - Voltage: 110V / 220V - Large UV sterilizer lamp tubes produce 254nm UVC rays. - Used to bacteria and viruses in the aquarium, kitchen, bathroom, restaurant, etc. - Note: These UV lamp is not provided with an external ballast herein may be used.Packing list: 1 * 110/220V G23 5W Base UV Bulb UV Sterilizer Lamp Aquarium Lighting