This 84 watt UV lamp is 100% compatible with Wedeco NLR1880 WS water sterilization filters, UV sterilizers and water purifiers. This lamp also uses UV-C light to inactivate and kill bacteria, molds, protozoa, viruses and yeasts. This replacement germicidal bulb has a lead wire with a connector on one end that is used for water purification. We are OEM manufacturer for many branded company for UV lamp and UV Air Cleaners. If you can not find what you are looking for,pls contact us by sales@yuplighting.com We will satisfy your needs!