2x Uv Bulb 36w 36 Watts Lamp 2g11 Base Pond Sterilizer Clarifier for Odyssea UVC This listing is for 2 UV bulb 36 watts. UV 36 watt bulb , Standard 2G11 - 4 straight pin base Length (installed) : 16.25" , Length (full) : 16.50" Fits most UV units and nail sanitizer Replacement ultraviolet sterilizer bulb 36 watts. Fits most UV units on the market. Includes Odyssea UV, Coralife Turbo Twist 12x, Tetra Pond UV3, and more.