9 Watt Replacement UV Bulb for Tetra, Coralife, Cyprio, 9W UV-C 9 Watt UV Bulb 9W G23 Base 9Watts Ultraviolet Germicidal Lamp Size 6.5 Inch Anyray AUVC-9W Replacement bulb for all Tetra, Coralife, TurboTwist, Cyprio and most all 9 Watt UV lights Length: 6.5'' inch Replacement bulb for UVC9 , 9-Watt UV-C Germicidal Ultraviolet Replacement Bulb Prevents DNA of germs to reproduce. 9 Watt G23 base UV-C