Accessorizing stock golf carts has become popular with cart owners. Although you can buy golf carts with upgrades--some equivalent to those on a new car--already installed from golf cart resellers, it is cheaper to install lights as a "Do It Yourself" project after you have purchased the cart than paying someone to install them for you. DIY light kits can be installed with less than a day's work.
Difficulty: Moderately Challenging
Purchase a light kit that has the look and feel desired for your golf cart. The Resources section of this article lists several online vendors where you can start your search for a light kit for your golf cart if you don't have a model/type in mind yet.
Mark the holes to drill on your golf cart for the headlight and tail light mounts. Most DIY light kits will require a 5/16-inch hole to be drilled for each light.
String the light kit through the mounting holes and secure in position with a cable tie. After you have attached the lights in position, attach them to the lighting harness of the DIY kit.
Plug your tail lights into the mounting holes you drilled on the rear of the car and secure with the washer and nut assembly. Then, you will connect them to the lighting harness. Repeat the process for the headlights of the DIY light kit on the front of your cart.
Mark a location on your golf cart's dash to drill a mounting hole for the light's on/off switch. Most DIY light kits will require a 15/32-inch hole to be drilled. Drill the hole and insert and secure the light switch.
Connect the DIY light kit's on/off switch to the lighting harness. Then attach the negative lead from the lighting harness voltage reducer to the negative lead on the last battery in the bank. Next, connect the positive lead of the switch to the positive lead of the same battery and your light installation is complete.