LSE Lighting 5W UV Bulb LP4000 for GermGuardian AC4300BPTCA, AC4825, AC4850 & AC4900 Air Purifiers Brand: LSE Lighting Wattage: 5W Bulb Type: UVC Germicidal 254nm, Base Type: G23 2pin This UV Bulb replacement by (LSE Lighting) brand is 100% compatible for GermGuardian AC4300BPTCA, AC4825, AC4850 & AC4900 Air Purifiers. All lamps listed are compatible UV brand (LSE Lighting) products. We do not sell Germ Guardian brand lamps. All Germ Guardian brand names, trademarks and logos are property of Germ Guardian.