LSE Lighting 9W UV Bulb for Danner Pondmaster Clearguard 2700 Brand: LSE Lighting Wattage: 9W (Base Type: G23 Base) Type: Ultraviolet Germicidal Bulb (UV-C)253.7nm - Length Overall: 6.5" This UV replacement lamp by (LSE Lighting brand) is 100% compatible with Danner Pondmaster Clearguard 2700 system. The UV bulb listed is a compatible brand (LSE Lighting) UV products. We do not sell Danner brand lamps. All Danner brand names, trademarks and logos are property of Danner.