... 54mm,hard glass 3.Porcelain lampholder,2/250,T300 4.E14 bulb,15W/25W,110V,240V,Tab terminal 6.3*0 ... : Porcelain, 2/250, T300Lens: Hard glass, T300Sleeve: Stainless steelLamp Bulb:E14, Coiled-coil filament, MAX 25W,110V~120V/230V~240V,T300type ... high quality for you. X555-54 Coiled-coil Filament T300 E14 15W/25W Oven Bulb