LSE Lighting compatible UV Bulb for Ultraviolet 05-0378-R 16W 14" 4pin Brand: LSE Lighting - Wattage: 16W - Bulb Shape: T5 Style Quartz Glass Base Type: 4pin (4pins on ONE END) - Length: 14" *Cross Reference Model # 05-0378-R for compatibility purposes only* This UV replacement bulb by (LSE Lighting) brand is 100% compatible with American Ultraviolet 05-0378-R Water Sterilizer. All lamps listed are compatible brand (LSE Lighting) UV Lamps. We do not sell American Ultraviolet brand lamps. All American Ultraviolet brand names, trademarks and logos are property of American Ultraviolet.