Many customers have shared their uncertainty about choosing the right mounting arm for parking lot lights.With multiple mounting options available—each designed for different pole types, installation methods, and lighting goals—it’s easy to feel unsure about which one fits a specific project. Understanding how each mounting arm works, and where it performs best, can make a significant difference in installation efficiency, light distribution, and long-term reliability. This guide breaks down the most common LED area light mounting arms to help you make a more confident, informed choice.
Slip Fitter
A slip fitter is one of the most common mounting arms used for LED parking lot and area lights.As shown in the image, it is designed to slide directly over the top of a round light pole, creating a secure connection between the fixture and the pole.The key feature of a slip fitter is its adjustable aiming mechanism. The built-in adjustment joint allows the light fixture to be tilted and locked at different angles, making it easier to direct light precisely where it’s needed—whether across a parking lot, roadway, or open outdoor area.
Because of its simple structure and flexibility, slip fitters are widely used in projects where coverage control and installation efficiency are important.
All-in-one
An All-in-One mount is a compact, integrated mounting arm designed to simplify both installation and wiring for LED area lights.Unlike slip fitters, which slide over the top of a pole, an all-in-one mount typically combines the mounting bracket and wiring access into a single, streamlined unit.
From the image, you can see that this type of mount has a more enclosed and structured shape, with built-in mounting points and cable entry. This design reduces the number of separate components needed during installation, making it a popular option for projects where speed, cleanliness, and simplicity matter.
Trunnion
A trunnion mount is a bracket-style mounting option designed for flat surfaces and wall installations.Instead of mounting on top of a pole, a trunnion mount allows the fixture to be secured directly to a wall, parapet, or flat mounting surface, using a U-shaped or adjustable bracket.
From the image, you can see that the trunnion mount creates a solid base behind the fixture, with bolts that allow the light to be angled before being fully tightened. This makes it a practical solution when pole mounting is not available or not desired.
Universal
A universal mount is designed to provide flexible mounting across different pole types and installation conditions.From the image, you can see that this mount features a flat mounting plate with multiple bolt holes, combined with an adjustable joint that allows the fixture to be positioned and secured at different angles.This structure makes the universal mount adaptable to a wider range of poles and mounting surfaces compared to more specialized options.
Arm mount
An arm mount is a fixed, extension-style mounting arm designed to project the light fixture outward from a pole or wall.From the image, you can see that this type of mount features a solid, straight arm structure, combined with a mounting base and an adjustable joint near the fixture connection.Unlike slip fitters or universal mounts, which focus on pole-top or multi-directional adaptability, an arm mount is primarily about creating horizontal offset and consistent positioning.
Select the appropriate lamp arm
Choosing the right mounting arm is just as important as selecting the light fixture itself. Each mounting option is designed for different installation conditions and adjustment needs. Understanding these differences helps ensure easier installation, proper aiming, and long-term stability for parking lot and outdoor lighting projects.