4” Square Pole Mount Tenon Adapter

 A 4″ square pole mount tenon adapter lets you convert the top of a square lighting pole so that standard fixtures with a 2-3/8″ tenon or slip-fitter mount can be attached securely. Instead of replacing a pole or buying special brackets, this adapter provides a ready-made mounting point for area lights, flood lights, and similar LED fixtures.

This adapter works with any LED light designed to mount on a 2-3/8″ slip-fitter or tenon, including area lights, shoebox lights, flood lights, and parking lot fixtures. It turns a square pole top into the correct round tenon size that most outdoor lighting fixtures use.

Yes. The square pole mount tenon adapter is meant to fit a 4″ square pole and provides a standard 2-3/8″ tenon that works with standard round slip-fitter brackets on LED fixtures. This makes it compatible with many common outdoor lighting bracket designs without needing extra reducers.

Yes. The adapter supports pole mounting on a 4″ square pole, and because it brings the fixture down to a standard tenon size, you can also pair it with the right surface or wall brackets when needed. This gives you flexibility in how and where fixtures are installed.

The adapter is made from heavy-duty steel with a durable finish, so it can withstand outdoor conditions like wind, rain, and UV exposure without bending or deteriorating. The strong construction also provides a stable base for heavier fixtures, which increases safety and reliability in commercial lighting installations.

These adapters are commonly used in parking lot lighting, street lighting, perimeter area lighting, campuses, industrial sites, and building exteriors where a standard square pole is already installed. They provide a professional mounting solution for updating or upgrading lighting without replacing the entire pole.