4" Round Incandescent Backup Light – White, Grommet Mount, Standard Plug

Classic Round Design. White Reverse Illumination. Standard Plug Connection.

Equip compatible trucks, trailers, recreational vehicles, and specialty vehicles with Kaper II's 4-Inch Round Incandescent Backup Light.

Designed for vehicle reverse-lighting applications, this lamp features white illumination, incandescent lighting technology, a grommet-mount configuration, and a standard plug interface.

Its familiar round format makes it a potential option for qualifying OEM vehicle manufacturing, replacement lighting, and maintenance applications.

Key Features & Benefits

• 4-Inch Round Design: Provides a familiar nominal lamp format for compatible vehicle lighting installations.

• Incandescent Illumination: Uses traditional incandescent lighting technology.

• White Light Output: Provides the white illumination associated with vehicle backup lighting.

• Backup / Reverse Function: Intended for vehicle reverse-lighting applications.

• Grommet-Mount Configuration: Designed for installation using a compatible mounting grommet.

• Standard Plug Connection: Features a standard-style electrical plug interface.

• OEM Applications: A potential option for compatible truck, trailer, and specialty vehicle manufacturing.

• Replacement Lighting: Suitable for consideration when replacing a compatible round incandescent backup lamp.

• Vehicle Lighting Integration: Can be evaluated for qualifying rear vehicle lighting assemblies.

Product Specifications

White Backup Illumination

This lamp is intended for vehicle backup and reverse-lighting applications.

Backup lights provide white illumination when the vehicle is placed in reverse, helping illuminate the area behind the vehicle and indicate reversing operation to other road users.

The supplied description confirms white illumination but does not identify the lamp's measured brightness, beam pattern, or photometric performance.

For regulated on-road applications, the complete lighting installation must satisfy applicable vehicle lighting requirements.

Traditional Incandescent Technology

Unlike LED reverse lights, this model uses incandescent lighting technology.

Incandescent lamps produce light by heating a filament inside a bulb.

This traditional technology remains relevant for certain replacement applications and vehicle lighting systems originally designed around incandescent components.

The specific bulb designation, operating voltage, wattage, and replacement procedure have not been supplied.

These details should be verified before recommending replacement bulbs or comparing electrical performance against LED alternatives.

4-Inch Round Lamp Configuration

The nominal 4-inch round design is a common format in commercial vehicle lighting.

Round backup lamps are frequently considered for rear lighting assemblies on compatible trucks, trailers, and specialty vehicles.

However, a nominal 4-inch designation does not guarantee compatibility with every 4-inch mounting opening.

Before installation, verify the lamp's actual outside diameter, mounting depth, grommet requirements, and connector clearance.

Grommet-Mount Design

This lamp is described as a grommet-mount fixture.

Grommet mounting typically uses a compatible mounting ring or insert to retain a lamp within a prepared vehicle panel opening.

This configuration is commonly used in commercial vehicle lighting assemblies.

The supplied description does not confirm whether the grommet is included with the lamp.

It also does not identify the required mounting-hole diameter, grommet dimensions, or panel thickness compatibility.

These details should be checked before ordering installation components.

Standard Plug Connection

The standard plug interface is another defining feature.

A compatible plug connection allows the lamp to be integrated into an appropriate vehicle lighting circuit.

For OEM manufacturers and maintenance technicians, identifying the connector configuration is important when selecting replacement lighting components.

The supplied description specifies a standard plug but does not identify the connector standard, number of terminals, wiring polarity, or whether a matching pigtail is included.

A standard plug designation should not be interpreted as universal compatibility with all vehicle harnesses.

Potential Applications

Commercial Trucks

A potential replacement or OEM reverse-lighting option for compatible commercial truck lighting assemblies.

Cargo and Utility Trailers

May be suitable for qualifying trailers equipped with compatible round backup-light mounting locations.

RV and Motorhome Lighting

Can be evaluated for recreational vehicle reverse-lighting applications where electrical and mounting specifications match.

Box Trucks and Work Vehicles

An option for compatible rear lighting assemblies on work trucks and specialty vehicles.

Fleet Maintenance

May be considered when replacing an existing incandescent backup lamp with a matching form factor and connector.

OEM Vehicle Manufacturing

The 4-inch round configuration, incandescent technology, grommet mounting, and standard plug interface provide useful specifications for manufacturers selecting reverse-lighting components.

These are potential applications rather than confirmed vehicle-fitment or regulatory-compliance claims.

Installation Considerations

Before installation, confirm:

• Actual lamp outside diameter.

• Required mounting-hole diameter.

• Lamp depth and rear clearance.

• Compatible grommet size and type.

• Whether the mounting grommet is included.

• Operating voltage and electrical requirements.

• Bulb type and wattage.

• Standard plug configuration and terminal arrangement.

• Whether a matching plug or pigtail is included.

• Correct backup-light circuit connection.

• Applicable DOT, FMVSS, and SAE requirements.

• Compatibility with the intended vehicle and installation location.

Follow Kaper II's installation instructions and applicable vehicle lighting requirements.

Important: The supplied description confirms a 4-inch round incandescent backup light with white illumination, grommet mounting, and a standard plug connection. Operating voltage, bulb type, mounting dimensions, included accessories, and regulatory certification require verification.