How to Install 12V Lights on a 48V Golf Cart?

Adding 12V lights to your 48V golf cart can greatly enhance its functionality and safety, allowing you to enjoy nighttime rides and increase visibility. While the electrical systems of golf carts may seem complex, this step-by-step guide will walk you through the process of installing 12V lights on a 48V golf cart, ensuring that your vehicle is well-equipped for both day and night use.

Rangefinder on Discount

Gather Your Materials

Before you start the installation process, gather the necessary materials and tools:

  1. 12V lights (LEDs are energy-efficient and durable)
  2. Wiring harness
  3. Toggle switch
  4. Wire connectors
  5. Wire strippers
  6. Crimping tool
  7. Screwdriver
  8. Drill and drill bits
  9. Zip ties
  10. Electrical tape

Safety Precautions

Safety should always be a priority when working with electrical systems. Before proceeding, make sure to:

  • Disconnect the golf cart’s batteries to prevent electrical shock.
  • Wear safety glasses to protect your eyes from debris.

Locate the Power Source

To power your 12V lights, you’ll need to tap into the 48V electrical system. Locate the main power cables on your golf cart’s batteries. These are typically marked with red for positive (+) and black for negative (-) connections.

Install the Toggle Switch

  1. Choose a suitable location for the toggle switch on your golf cart’s dashboard.
  2. Drill a hole for the switch and secure it in place.
  3. Connect one wire from the wiring harness to the toggle switch’s positive terminal and another wire to the negative terminal. Use wire connectors and secure them with a crimping tool.
  4. Route the wires from the toggle switch to the power source.

Connect the Wiring Harness

  1. Connect the wiring harness to the 12V lights.
  2. Route the wiring harness through the golf cart’s frame to conceal the wires and protect them from damage.
  3. Connect the wiring harness to the toggle switch.
  4. Connect the wiring harness to the power source on the golf cart’s batteries. Connect the positive (+) wire to the positive terminal and the negative (-) wire to the negative terminal using wire connectors.

Test the Lights

Before finalizing the installation, perform a test to ensure that the lights are working correctly. Reconnect the golf cart’s batteries and toggle the switch to see if the lights illuminate.

Secure and Conceal Wiring

Use zip ties to secure the wiring along the frame and prevent it from dangling or getting caught on objects. Additionally, use electrical tape to wrap any exposed wire connectors for added protection against moisture.

Final Adjustments

Once you’ve confirmed that the lights are functioning correctly, make any final adjustments to the wiring, switch placement, or light positioning to ensure everything is secure and aligned to your satisfaction.


Regularly inspect your 12V lights and wiring for any signs of wear or damage. Replace any damaged components promptly to maintain optimal performance and safety.

Additional Tips and Considerations

a. Battery Life: While adding 12V lights to your golf cart is a great addition, it’s essential to monitor your battery’s charge level. Running lights for extended periods can drain your batteries faster, so be mindful of your usage and consider upgrading to higher-capacity batteries if necessary.

b. LED vs. Incandescent Lights: LED lights are highly recommended for golf cart lighting due to their energy efficiency and longevity. They draw less power from your batteries and are less likely to burn out compared to incandescent bulbs.

c. Customization: You can get creative with your lighting setup. Beyond basic headlights and taillights, you can add features like underbody LED strips, interior lights, or even turn signals for added safety and style.

d. Legal Considerations: Depending on where you plan to use your golf cart, there may be regulations regarding lighting. Check your local laws to ensure that your lighting modifications comply with any relevant requirements.

e. Waterproofing: Golf carts are often used outdoors, so it’s crucial to protect your electrical components from moisture. Use waterproof connectors and ensure that your lights are well-sealed to prevent water damage.


If you encounter any issues with your 12V lights after installation, here are some common troubleshooting steps:

  • Check the wiring connections to ensure they are secure and properly crimped.
  • Inspect the toggle switch for any loose wires or connections.
  • Test the lights with a multimeter to verify if they are receiving power.
  • Ensure that the golf cart’s batteries are adequately charged.

If problems persist, consult the manufacturer’s instructions for your specific lights or seek assistance from a professional with experience in golf cart electrical systems.

Tools and Materials

ItemDescriptionQuantity Needed
12V LED LightsHigh-efficiency LED light kits1 Set
Wire StrippersTo strip and cut wires1
Wire ConnectorsFor connecting wires securely20
Wiring HarnessPre-wired harness for lights1
Drill and BitsFor creating holes and mounts1 Set

Steps for Wiring

1Disconnect the golf cart’s battery for safety.
2Plan the light placement and drill holes for fixtures.
3Install the 12V lights using brackets and mounts.
4Connect the lights to the wiring harness according to instructions.
5Route the wires neatly along the cart’s frame and secure them.
6Connect the wiring harness to the 48V power source using a voltage reducer.
7Test the lights to ensure they work properly.
8Secure any loose wires and ensure they won’t interfere with cart operation.
9Reconnect the golf cart’s battery.
10Conduct a final test of the lights to verify proper functionality.

Wiring Color Codes

Wire ColorPurpose
RedPositive (+) for lights
BlackNegative (-) for lights
Yellow48V power source (+)
GreenGround for wiring harness
BlueOptional: Turn signal (+)

Safety Tips

Safety Tip
Wear safety glasses when drilling and working with wires.
Ensure the cart’s battery is disconnected during work.
Use wire connectors and electrical tape for secure connections.
Test the lights before finalizing the installation.
Avoid routing wires near moving parts or hot components.

Troubleshooting Tips

Lights not turning onCheck connections and fuses.
Lights flickering or dimmingInspect wire connections and voltage reducer.
Uneven light brightnessVerify that wiring is consistent and secure.
Lights interfering with cartRe-route and secure wires away from moving parts.
Lights getting too hotEnsure proper voltage and wiring gauge are used.


Installing 12V lights on your 48V golf cart is a rewarding project that can elevate your cart’s functionality and appearance. Whether you’re using your golf cart for golfing, utility tasks, or leisurely rides, having reliable lighting makes a significant difference, especially during low-light conditions.

Remember that safety and proper installation are paramount. Following the steps outlined in this guide and considering the additional tips and precautions will ensure that your lighting installation is not only functional but also durable and safe.

With your newly upgraded golf cart, you can confidently navigate various environments, from the golf course to your neighborhood, day or night. Enjoy your illuminated rides!

How to Install 12V Lights on a 48V Golf Cart?



  • Ryan Spino

    Ryan Spino, our Executive Editor since January 2022, has been instrumental in shaping The Golf Mine. His vision, backed by a Golf Management MBA and extensive editorial expertise, has expanded our coverage, ensuring that every article upholds our commitment to quality and accuracy in the golfing realm.

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