Eiko SP13/27-4P 13W 2700K 4 Pin Base Spiral Halogen Bulbs These lamps feature high performance tungsten filaments which produce a brighter, whiter light Eiko brand bulbs for great performance Cfli MOL in/mm 3.74/95,MOD in/mm 1.97/50,Bulb Type T-4,Base Type G24q-1