Porch Light

The porch light may be any number of lamps, if it's a bayonet base (Like the 1156 or 1141) then a 1141 should work.. I would avoid the 1156 (Too hot) I think there is one more (91?) that is even cooler (And dimmer)

1141 and 1156 are "Turn Signal/Stop/Backup/Dome" lamps The other one is a tail light, license plate or marker lamp.