LSE Lighting 10W replacement Lamp 12971 for Pondmaster Submersible Ultraviolet (UV) Clarifier Brand: LSE Lighting Long Life: 10,000hrs - Recommended to replace once a year 10W - 8.75" - (T5F - 4pin one END with gap between the 4pins) This UV lamp by LSE Lighting brand is 100% compatible replacement for use with Pondmaster Sterilizer 02910. All lamps listed are compatible LSE Lighting brand UV products. We do not sell Danner brand lamps. All Danner brand names, trademarks and logos are property of Danner.