ACDelco Bulb - PC74 Part #: PC74 Line: ACD ACDelco Bulb 2 Year LIMITED WARRANTY Bulb Family: PC74 Overall Length (in): 13/16 Inch Overall Length (mm): 20mm Voltage (V): 12 Volt Wattage (W): 1.4 Watt Bulb Diameter (in): 7/16 Inch Bulb Type: Incandescent SAE/DOT Compliant: Yes Base Type: Twist Lock Bulb Diameter (mm): 11mm Light Output (Lumens): 0.7 Lumen Show More Show Less