Tenon Adapters for Light Poles

Tenon adapters bridge the gap between existing light poles and modern LED fixtures, creating secure mounting solutions that transform your lighting infrastructure. These commercial-grade brackets accommodate multiple pole configurations while providing the structural integrity needed for heavy-duty outdoor applications. We typically recommend matching your adapter size to your pole's outside diameter for optimal fit and load distribution.

• 3 inch round pole adapter
• 4 inch round pole adapter
• 4 inch square pole adapter
• 5 inch round pole adapter
• 5 inch square pole adapter

Beyond basic mounting, these heavy-duty brackets enable complex lighting configurations that would otherwise require complete pole replacement. Steel construction with powder-coated finishes ensures long-term performance in harsh weather conditions. Most customers choose aluminum options for coastal installations due to superior corrosion resistance, while steel versions handle higher wind loads in inland applications. When retrofitting existing poles, proper load calculations prevent structural overload while maximizing your lighting investment.

Competitive pricing keeps most quality adapters under $100, delivering exceptional value compared to new pole installation costs. Smart project planning starts with accurate measurements - pole diameter, wall thickness, and fixture specifications determine the right adapter configuration. Our Product Specialists provide technical support for complex installations where wind load calculations and structural analysis become critical factors.

What Are Light Pole Tenon Adapters?

Light pole tenon adapters function as mechanical interfaces that expand single-pole mounting capacity into multi-fixture platforms. Rather than installing additional poles, these engineered brackets create mounting points for LED fixtures, cameras, or signage on existing infrastructure. Top-mount configurations handle primary lighting loads, while side-mount versions accommodate auxiliary equipment without compromising structural integrity.

Types of Tenon Adapters

Round pole adapters dominate street lighting applications, offering 360-degree rotation for precise fixture positioning. Square pole versions integrate with architectural lighting where clean lines matter most. Reducer adapters solve compatibility issues when fixture tenons don't match pole dimensions, eliminating the need for custom fabrication.

Slipfitter-style adapters provide angular adjustment during installation, critical for achieving proper light distribution patterns. Material selection impacts longevity - 6061-T6 aluminum resists corrosion while maintaining strength-to-weight ratios superior to steel in most applications. Marine-grade finishes extend service life in salt-air environments where standard coatings fail prematurely. Project quantities determine bulk pricing advantages, with larger installations benefiting from volume discounts. Compatibility verification prevents costly field modifications - fixture weight, EPA ratings, and mounting hardware must align with adapter specifications. LED area lights, floodlights, and architectural fixtures all require specific mounting considerations that influence adapter selection.

Key Features and Benefits

Commercial-grade construction delivers the reliability demanded by municipal and industrial lighting projects. High-strength materials withstand 150+ mph wind loads when properly specified and installed. Weather-resistant finishes maintain appearance and performance through decades of exposure:

• Single through quad-arm configurations maximize pole utilization
• Round, square, and tapered pole compatibility covers existing infrastructure
• TGIC polyester powder coating provides superior UV resistance
• Engineered mounting angles optimize photometric performance
• Standard hardware simplifies field installation and reduces labor costs

Common Applications

Municipal lighting upgrades benefit from tenon adapters when budget constraints prevent complete infrastructure replacement:

• Highway and arterial road lighting modernization projects
• Retail parking lot illumination improvements with LED area lights
• Athletic facility installations requiring precise beam control
• Integrated security systems combining lighting with surveillance cameras
• Wayfinding signage mounting in urban environments
• HID-to-LED conversion projects maximizing existing pole investments

Installation Considerations

Structural analysis becomes critical when adding fixtures to existing poles. Wall thickness below 0.125 inches may require reinforcement for heavier LED assemblies. Wind load calculations factor in fixture EPA, mounting height, and local weather patterns to ensure long-term stability without compromising safety margins.

Selecting the Proper Tenon Adapter

Engineering specifications drive adapter selection beyond basic dimensional compatibility:

• Fixture count and spacing requirements for optimal light distribution
• Combined weight and EPA calculations for structural safety
• Pole material, age, and condition assessment for load capacity
• Photometric requirements influencing arm length and angles
• Coastal or industrial environments demanding specialized coatings
• Local wind load and seismic requirements per building codes
• Custom fabrication options for unique architectural applications