SmartLive 110v 4w G8 Dimmable LED Light White 6000k 30W~40W Halogen Replacement For Chandelier Crystal Ceiling Lamp Light in Bath room,Bed room,Living roomKitchen About the bulb base fitness.The base of this item is the standard G8 base ,which means the distance between the two pin is 8mm ,and the thickness of the pin is about 1.1 to 1.2 mm.It could not be used for different base fixture except the G8. voltage should be between 110 volt to 120 volt Size:4.1 Length X 1.6 Diameter CM