LSE Lighting compatible 9W UV Bulb replacement for Tetra Pond Brand: LSE Lighting Wattage: 9W, Base Type: G23, Length: approx 6 1/2" Effective Hours Rating: 10,000hrs This UV replacement lamp by (LSE Lighting brand) is 100% compatible for use with Tetra Pond 9W Unit. All lamps listed are compatible brand (LSE Lighting) UV products. We do not sell Tetra brand lamps. All Tetra brand names, trademarks and logos are property of Tetra.