VPG MV-1 Back Up Light Bulb Size

The VPG MV-1 back up light uses bulb size 1156 or P21W depending on the specific version required for the vehicle. Data for the bulb sizes covers the range from 2011 to 2012.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2011-2012	1156

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156

Other Locations

Additional Notes

The 1156 is the bulb type specified for the VPG MV-1 backup light across the 2011-2012 model years.
The 1156 operates at 12 volts with a 21-watt single filament, making it a standard incandescent bulb suited for on/off lighting functions such as backup lights.
The 1156 uses a BA15s bayonet base, which is a single-contact bayonet mount. This base type is not interchangeable with the BA15d double-contact bayonet base used on dual-filament bulbs such as the 1157.
The 1156 is classified under ANSI standards and is recognized in both the United States and Canada, reflecting its use across North American vehicle applications.
Because the 1156 is a single-filament design, it serves only one lighting function per socket. Dual-filament replacements would require a different base configuration and are not a direct fit.