How To Wire 12 Volt Lights To A 36 Volt Golf Cart

If you own a 36-volt golf cart and want to add 12-volt lights to it, you can do so by creating a separate 12-volt electrical system. This allows you to power accessories like lights without affecting the cart’s primary 36-volt system. Here’s a step-by-step guide on how to wire 12-volt lights to a 36-volt golf cart:

Materials Needed

Before you start the wiring process, gather the following materials:

  • 12-volt lights (LED or halogen)
  • 12-volt deep-cycle battery
  • Battery box or enclosure
  • In-line fuse holder with a fuse
  • Wire connectors and terminals
  • Wire strippers and crimping tool
  • Electrical tape
  • Screwdriver and wrenches
  • Drill and bits
  • Mounting hardware for lights


1. Plan Your Wiring

Start by planning the layout of your lights. Decide where you want to install them on your golf cart, making sure they won’t obstruct your view or interfere with cart operation.

2. Mount the Lights

Use the mounting hardware to securely attach the lights to the chosen locations on your golf cart.

3. Install a 12-Volt Deep-Cycle Battery

Find a suitable location on your golf cart to mount the 12-volt deep-cycle battery. Use a battery box or enclosure to protect it from the elements and secure it in place.

4. Connect the Battery

Wire the positive (+) terminal of the 12-volt battery to the positive terminal of your 12-volt lights. Connect the negative (-) terminal of the battery to the negative terminal of the lights. Use appropriate wire connectors and terminals to make secure connections.

5. Install an In-Line Fuse

For safety reasons, install an in-line fuse holder with a fuse between the positive terminal of the 12-volt battery and the positive wire of the lights. This protects the circuit from overloading and reduces the risk of electrical fires.

6. Run Wiring

Use appropriately sized wires to connect the lights to the battery. Route the wiring along the frame or through existing wire channels in your golf cart. Secure the wiring in place using cable ties or clamps to prevent it from getting tangled or damaged.

7. Connect the Lights to a Switch

Install a switch on your golf cart’s dashboard to control the 12-volt lights. Connect the positive wire from the lights to one terminal of the switch and connect the other terminal of the switch to the positive terminal of the 12-volt battery. This allows you to turn the lights on and off as needed.

8. Test the Lights

Before finalizing the wiring, test the lights to ensure they work properly. Turn on the switch and check if the lights illuminate. If they don’t, recheck your connections and wiring.

9. Secure and Protect Wiring

Once everything is working as intended, secure any loose wiring using clamps or zip ties. Make sure all connections are insulated and protected with electrical tape or heat shrink tubing to prevent moisture and corrosion.

10. Regular Maintenance

Periodically check the condition of the battery and wiring to ensure they are in good working order. Clean and tighten connections as needed, and replace any damaged components.

By following these steps, you can successfully wire 12-volt lights to your 36-volt golf cart, enhancing its functionality and safety, especially when driving in low-light conditions.

Additional Tips and Safety Considerations

Voltage Reduction

While this guide focuses on creating a separate 12-volt system, some golf cart owners prefer to reduce the voltage from the main 36-volt system to power 12-volt accessories. This can be done using a voltage reducer or converter. However, keep in mind that this method may draw power from your cart’s main batteries and could potentially affect the cart’s performance.

Proper Wiring Gauge

Ensure you use the appropriate wire gauge for your 12-volt system. Thicker wires are necessary for longer runs to prevent voltage drop and ensure optimal performance of your lights.

Voltage Monitoring

Consider adding a voltage monitor or battery gauge to keep track of the 12-volt battery’s state of charge. This helps prevent over-discharging the battery, which can shorten its lifespan.


Protect all electrical connections and components from moisture and corrosion by using weatherproof enclosures, sealants, and waterproof connectors. Golf carts are often used in various weather conditions, and protecting your electrical system is crucial for longevity and safety.

Professional Assistance

If you’re not confident in your electrical wiring skills, it’s always a good idea to seek help from a professional or an experienced golf cart technician. They can ensure your wiring is safe, reliable, and complies with local regulations.

Legal Considerations

Check your local laws and regulations regarding the use of lights on golf carts. Some areas have specific rules governing the type, placement, and usage of lights, especially when driving on public roads or golf courses.

Regular Maintenance

Regularly inspect your 12-volt lights and wiring for signs of wear and damage. Replace any worn-out components promptly to avoid electrical problems or safety hazards.

Materials Needed

MaterialPurposeQuantity NeededWhere to ObtainCost (Approx.)
12-volt lightsIllumination for the golf cart2 lightsAuto parts store$30 each
12-volt deep-cycle batteryPower source for the lights1 batteryHardware store$100
Battery box or enclosureProtection for the battery1 boxHardware store$20
In-line fuse holder with fuseSafety for the electrical circuit1 setAuto parts store$10
Wire connectors and terminalsSecure electrical connectionsVariousHardware store$5 – $10

Steps to Wire 12 Volt Lights

1Plan the layout for light placement on the golf cart.
2Mount the lights securely at the chosen locations.
3Install a 12-volt deep-cycle battery on the cart.
4Connect the positive terminal of the battery to the lights.
5Attach the negative terminal of the battery to the lights.
6Add an in-line fuse for circuit protection.
7Run wiring along the frame or through existing channels.
8Install a switch on the cart’s dashboard to control the lights.
9Test the lights to ensure they work correctly.
10Secure and protect wiring and components as needed.

Safety Considerations

Safety ConsiderationDescription
Voltage ReductionUsing a voltage reducer or converter may draw power from the main batteries.
Proper Wire GaugeChoose the appropriate wire gauge to prevent voltage drop.
Voltage MonitoringConsider adding a voltage monitor or battery gauge.
WeatherproofingProtect connections and components from moisture and corrosion.
Professional HelpSeek assistance from a professional if you’re not confident in your wiring skills.

Legal Considerations

Legal ConsiderationDescription
Local RegulationsCheck local laws for rules on golf cart lights’ type, placement, and usage.

Maintenance Tips

Maintenance TipDescription
Regular InspectionPeriodically inspect lights and wiring for wear or damage.
Component ReplacementReplace worn-out components promptly.

By following these additional tips and safety considerations, you can enjoy the benefits of 12-volt lights on your 36-volt golf cart while ensuring the safety and functionality of your electrical system. Proper wiring and maintenance are key to a trouble-free experience with your golf cart accessories.

How to Wire 12 Volt Lights to a 36 Volt Golf Cart 2



  • Joel Moore

    Joel Moore's journey with The Golf Mine began in September 2021. His passion for golf, supported by a Golf Management Certification, and quick learning earned him the role of Deputy Editor.

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