LSE Lighting UV Bulb 7W for AquaTop PF40-UV PF25-UV SP7UV UVE-7 R7WUV-SQ Wattage: 7W Base Type: Square Base - 2pin Super Life of 12,000hrs This UV Bulb by LSE Lighting brand is 100% compatible for AquaTop PF40-UV Hang-On Power Filter, PF25-UV Hang-On Power Filter, SP7-UV Submersible UV Sterilizer, UVE7 Submersible UV Sterilizer All lamps listed are compatible brand UV products. We do not sell AquaTop brand lamps. All AquaTop brand names, trademarks and logos are property of AquaTop.