LSE Lighting 10W UV Bulb for AquaTop UV-10 IL10UV In-Line R10WUV-RD GPH212T5 Brand: LSE LIghting Base Type: 4pins ONE END, Length: 8 1/2", Wattage: 10W Bulb Type: T5 Style Quartz Glass This UV Lamp by LSE Lighting Brand is 100% compatible for use with AquaTop UV-10 Submersable Pump and IL10UV In-Line Sterilizer. All lamps listed are compatible brand (Light Spectrum Enterprises, Inc) UV products. We do not sell AquaTop brand lamps. All AquaTop brand names, trademarks and logos are property of AquaTop.