Need help choosing the right Product?
Get expert recommendations and a custom lighting plan within 1 day! Get Product Recommendations ➜
5 Inch Round Pole Tenon Adapter | 2 3/8 Inch Tenon | Bronze
This 5 inch round pole tenon adapter is a practical solution for mounting area lights or flood lights on round poles with a 5 inch outside diameter, providing a standard 2 3/8 inch tenon for secure fixture attachment. Its stable design and bronze finish ensure both reliable alignment and visual consistency in commercial or industrial outdoor settings such as parking lots and roadways.
171 in stock
Product Description
Key Features
- Type: 5 Inch Round Pole Tenon Adapter
- Color: Bronze
- Tenon Size: 2 3/8 inch
- Warranty: 1 year
Web ID: 1999
Product Overview
This 5 Inch Round Pole Tenon Adapter is designed to convert a standard 5 inch round steel or aluminum pole to accept fixtures with a 2 3/8 inch tenon mount. The adapter provides a secure interface for post top luminaires and architectural site lighting heads that require a tenon connection. Bronze finish matches common site and area lighting hardware for a consistent appearance in exterior environments.
Typical use is in post top lighting installations for pedestrian areas, pathways, and architectural sites where round poles are specified. The adapter is suitable for both new construction and retrofit projects where fixture mounting requirements change or upgrade.
Core Performance and Output
This adapter is engineered to provide a stable mounting platform for post top fixtures using a 2 3/8 inch tenon. The structural design supports the weight and wind load of standard post top luminaires within typical EPA and fixture weight limits for 5 inch round poles. The adapter maintains fixture alignment and prevents rotation under normal operating conditions.
Performance is dependent on the pole?s structural capacity and the total EPA and weight of the mounted fixture. Excessive fixture size or wind load may exceed the pole or adapter?s intended use. Always verify compatibility with both fixture and pole specifications before installation.
Adjustability and Control Options
The tenon adapter provides a fixed 2 3/8 inch tenon for direct mounting of compatible fixtures. There are no integrated aiming, tilt, or rotation adjustments in the adapter itself. Fixture orientation is determined by the fixture?s mounting hardware and the pole?s installation.
No electrical or control features are included. All fixture control options must be handled at the fixture level or through external control systems.
Longevity and Reliability
The adapter is constructed for outdoor use with a durable bronze finish that resists corrosion and weathering. The mechanical design is intended for long-term service in typical site lighting environments. Routine inspection of mounting hardware is recommended to ensure continued secure attachment over time.
Product includes a 1 year warranty covering material and manufacturing defects under normal use. Longevity is influenced by environmental exposure and adherence to installation best practices.
Build Quality and Physical Characteristics
This adapter is fabricated from robust materials suitable for commercial exterior lighting applications. The bronze finish provides both corrosion resistance and visual consistency with standard pole and fixture finishes. The 2 3/8 inch tenon is sized for industry-standard post top fixtures.
Adapter dimensions are matched to 5 inch round poles for a snug, secure fit. All mounting hardware should be checked for compatibility with the pole wall thickness and fixture weight.
Where This Product Fits Best
This tenon adapter is intended for use in exterior environments where 5 inch round poles are installed and post top fixtures are required. It is commonly used in architectural site lighting, pedestrian areas, and decorative outdoor lighting projects.
- post top lighting
- architectural site lighting
- pedestrian area lighting
- decorative outdoor lighting
- park lighting
- campus lighting
- pathway lighting
- municipal decorative lighting
The adapter is suitable for outdoor use in standard weather conditions. Not intended for use in marine, corrosive, or high-vibration environments without additional protection or specification review.
Installation and Long-Term Use
Installation requires securing the adapter to the top of a 5 inch round pole using appropriate hardware. The tenon provides a direct mount for fixtures designed for 2 3/8 inch tenon connections. Ensure all fasteners are tightened to manufacturer torque specifications to prevent loosening over time.
Periodic inspection is recommended to check for corrosion, hardware loosening, or fixture misalignment. Adapter should be replaced if any structural damage or excessive wear is observed during maintenance cycles.
How This Fixture Is Commonly Used
Adapters are typically installed at mounting heights ranging from 10 to 20 feet, depending on the application and fixture type. Spacing and layout are determined by the lighting design and the distribution pattern of the selected post top fixture.
Fixture count and pole spacing may be reduced with higher output luminaires, but this can increase glare or reduce uniformity if not properly planned. Always coordinate adapter use with the overall site lighting layout and photometric requirements.
Safety, Certifications, and Warranty
This product is designed for use with standard commercial lighting poles and fixtures. All installation work should comply with local codes and safety standards. The adapter does not carry electrical or UL certifications, as it is a mechanical mounting accessory.
Includes a 1 year warranty covering defects in materials and workmanship under normal use. Warranty does not cover improper installation or use outside of intended applications.
Frequently Asked Questions
Q: What fixture types are compatible with this tenon adapter?
A: Fixtures with a 2 3/8 inch tenon slipfitter or post top mounting are compatible.
Q: Can this adapter be used on square poles?
A: This adapter is designed for 5 inch round poles only. It will not fit square poles.
Q: What is the maximum fixture weight this adapter can support?
A: Maximum supported weight depends on the pole?s structural rating and the fixture?s EPA. Verify both before installation.
Q: Is the bronze finish suitable for coastal or marine environments?
A: The bronze finish is intended for standard outdoor use. For marine or corrosive environments, additional protection may be required.
Q: How should I plan fixture spacing when using this adapter?
A: Fixture spacing should be based on the lighting design, fixture output, and site requirements. Consult photometric layouts for optimal results.
Application Questions and Clarification
Q: Can this adapter be used for pathway lighting on a campus?
A: Yes, when installed on 5 inch round poles with compatible post top fixtures, it is suitable for campus pathway lighting.
Q: Is this adapter appropriate for municipal decorative lighting projects?
A: Yes, it is commonly used in municipal decorative and architectural site lighting with round poles.
Q: Does this adapter support lighting upgrades in existing parks?
A: Yes, it can be used to retrofit existing 5 inch round poles for new post top fixtures in park environments.
Q: Are there any restrictions on mounting height for this adapter?
A: The adapter is typically used at mounting heights from 10 to 20 feet. Always confirm pole and fixture compatibility for higher installations.


