Siemens SBH-20 High Output Replacement UVC Light Bulb Item:Ballast While the AU bulb 05-1116R

While the AU bulb 05-1116R is compatible with both systems

The UV-C light inactivates and kills bacteria

100% Compatible Replacement for Lamp/Model Number: GPH436T5L

The Sunlight - LP4040 UV Light Bulb For Germicidal Water Treatment is a guaranteed replacement UV bulb that gives you a worry-free performance for an entire year

Aluminum Reflector Set for Ushio MHL-5027S Metal Halide UV Lamp

Siemens SBH-20 High Output Replacement UVC Light Bulb Item:Ballast While the AU bulb 05-1116R4 Pin on a Single End 87 Watt Germicidal Water Treatment Bulb The UVC lamp bulb operates at a wavelength range of 253. 7nm and helps in deactivating the genetics of microorganisms such as bacteria, molds, virus and yeast. The UV lamp can work well for 10,000 hours or one year lifespan and the UV bulb must be replaced annually for maximum efficiency. People believe that UV water purification provides a safe solution and this method of sterilization is