MINIATURE BI-PIN BASE, G4, G6.35, GY6.35, GX5.3 MR16, GZ4 MR11, HALOGEN, INCANDESCENT, CERAMIC BODY LAMPHOLDER, MOUNTING HOLES, SIDE WIRED, WHITE. WARNING MINIATURE QUARTZ HALOGEN LAMPS OPERATE UNDER PRESSURE AND HIGH TEMPERATURES. TO PREVENT SOCKET DAMAGE, THE DESIGN OF THE FIXTURE AND ITS APPLICATION MUST BE CAREFULLY CONSIDERED. FOR LEVITON WARRANTIES TO APPLY TO THIS PRODUCT, LAMP WATTAGE.