How to Wire Light Bar on Golf Cart

Wiring a light bar on a golf cart can help improve visibility and safety when driving at night or in low light conditions. Here are the steps to follow to wire a light bar on a golf cart:

  1. Determine where to mount the light bar: Choose a location on the front of the golf cart where the light bar can be securely mounted. You may need to purchase a mounting bracket or kit if your golf cart does not already have one.
  2. Gather your materials: You will need a light bar, a wiring harness, a switch, wire connectors, and electrical tape.
  3. Disconnect the battery: Before starting any electrical work , make sure to disconnect the battery to avoid any risk of electric shock or damage to the golf cart’s electrical system.
  4. Connect the wiring harness: Attach the wiring harness to the light bar and connect the wiring harness to the golf cart’s battery.
  5. Install the switch: Mount the switch in a convenient location on the golf cart’s dashboard or steering column. Connect the switch to the wiring harness using wire connectors.
  6. Test the light bar: Turn on the golf cart and test the light bar to ensure that it is working properly.
  7. Secure all wiring: Use electrical tape to secure all wiring and protect it from damage or exposure.
  8. Reconnect the battery: Once you have completed the wiring, reconnect the golf cart’s battery.
  9. Use a relay: To avoid any risk of electrical overload or damage to your golf cart’s electrical system, it’s recommended to use a relay in your light bar wiring. A relay is an electrical switch that allows a low current circuit to control a high current circuit. It helps to protect your golf cart’s battery and electrical system by providing a safe and efficient way to power your light bar.
  10. Connect the ground wire: Make sure to connect the ground wire of the light bar and the wiring harness to a grounding point on the golf cart’s frame. This will help prevent any electrical issues and ensure the light bar functions correctly.
  11. Follow safety precautions: Always wear safety gloves and eye protection when working with electrical wiring to avoid any risk of electric shock or injury. Be sure to read the manufacturer’s instructions and safety guidelines before starting any electrical work.
  12. Consider a professional installation: If you’re not comfortable working with electrical wiring or don’t have the necessary tools, it’s always a good idea to have a professional install your light bar. This will help ensure that the installation is done correctly and safely.

Basic wiring components

ComponentDescriptionPurposeWire GaugeColor
FuseProtects the circuit from electrical overloadSafety16 or 18 AWGRed
SwitchTurns the light bar on and offControl16 or 18 AWGBlack
RelayControls the high current flow to the light barControl10 or 12 AWGBlue
BatteryProvides power to the light barPower source8 or 10 AWGYellow
Light barIlluminates the area in front of the golf cartLighting12 or 14 AWGWhite

Wiring connections

ComponentConnectionWire Color
BatteryPositive terminalYellow
FuseOne endYellow
SwitchOne endYellow
RelayPin 30Yellow
Light barPositive wireWhite


 Relay connections

Pin numberConnectionWire Color
85GroundGreen or bare
87Light bar positive wireWhite
87ANot usedN/A
30Fuse and battery positive wireYellow
86Switch wireBlack

Wiring color code

RedPower input
YellowBattery or power source
WhiteLighting or output

Note: These tables are for informational purposes only. Wiring a light bar on a golf cart can be complex and requires knowledge of electrical systems and wiring diagrams. It is recommended to consult a professional or refer to the golf cart’s wiring diagram for guidance.


  • Ray Barnes

    Ray Barnes, our Senior Staff Writer and a Golf Analyst with a PhD in Sports Analytics, is a beacon of insight in the golfing world. With a deep understanding of the sport's nuances, statistical analysis, and a talent for demystifying complexities, he provides in-depth analysis and captivating narratives that engage golf enthusiasts worldwide.

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