Pure and healthy water: UV-C water clarifier for quick and effective elimination of green and white cloudiness in aquariums No change in water values, no impact on cleaning bacteria and water parameters Germicidal UV-C radiation at 255 nanometers, reduces the risk of infection Note: UV-C lamps should not be touched with bare fingers as this reduces their lifespan Package contents: Replacement lamp for JBL AquaCristal UV-C and other UV-C devices