1157 is a standard dual filament auto tail light bulb with a bayonet base. A porch light would use an 1141 if it were a bayonet base. 1156 is a single filament bayonet base identical looking to a 1141 but much higher wattage and should not be used, as it can burn or melt the insulator in the socket. 1156 is more of an intermittent use bulb for backup lights.
Looking thru GE minature lamp listings, there is no 1175.
Does it have dual contacts on the base or one in the center? Is it a bayonet base like an older automotive bulb?
Does the light look like one of these?
Bargman porch lightsIf that is what it is, then it uses an 1141 bulb.
I used these LED lights in my fixtures including the porch light.
Goldstars 11568305 LEDCharles