Sylvania 74182 LEDRT4550850. This Contractor LED RT4 Downlight Retrofit is equivalent to a standard 50 watt PAR20 lamp and uses only 8 watts of energy. This item is Energy Star qualified, indoor/outdoor wet rated, runs on 120 volts and is dimmable. The E26 medium base adaptor easily connects to the existing sockets power source. This item produces a daylight 5000K light and has a rated life of 11000 hours. This retrofit is intended for use with standard insulated ceilings, airtight and non-IC incandescent downlight housings. More information is available in the PDF spec sheet below.