Lithonia Lighting LTH3000 PAR30 DBL M24 1-Light Front Loading Commercial Track Head, 1-2 Circuit, Steel, PAR30-Compatible Led, Black Low-profile lamp holder is made of die-cast aluminum and finished in Matte Black and is designed for dry locations Uses (1) PAR30 bulb which is not included. Can be paired with par 30 compatible LED or 75-watt halogen maximum Uses an E26 Medium base 120V porcelain socket Compatible with nordic aluminum global (ges & get) track systems Adaptors have been evaluated and tested in accordance to UL1574 track system Standards