1157 Bulb

This Eiko 1157 mini indicator lamp has dual C-6 filaments, allowing it to operate at 12.8 and 14 volts. The S8 shaped bulb has a double contact index bayonet base. With an impressive life rating of 1,200 hours and 5,000 hours per filament, this lamp is typically used as a tail light or brake light in domestic cars.