Part # - 57, Description: G-4 1/2 BA9s 14V .24A 2CP. Bulb Shape: G-4 1/2, Filament: C-2V, Base Style: Miniature Bayonet (BA9s), Glass Diameter (in): 0.59, Maximum Overall Length (in): 1.070, Light Center Length (in): 0.56, Glass Diameter (mm): 15, Maximum Overall Length (mm): 26.92, Light Center Length (mm): 14.20, Volts: 14, Avg Life Hrs: 500, Watts: 3.36, Amps: 0.24, RoHS Compliant: Yes.