How to Install Low-Voltage Garden Lighting

Landscape lighting transforms a dark yard into a usable, evening retreat while adding significant safety and curb appeal. Unlike high-voltage installations that require a permit and deep trenching, low-voltage systems run on 12 volts, making them safe to handle and easy to install for any homeowner. Done well, your lighting should feel subtle rather than industrial. Avoid the runway effect by placing lights to highlight textures, architectural features, or pathways rather than just flooding an area with light. Focus on the soft glow and the hidden placement of the fixtures; you want to see the effect of the light, not the bulb itself.

1. Preview Your Lighting Design. Place your path lights and spotlights where you want them, leaving a little extra slack in the cable at each point. Arrange them to highlight features like specimen trees or stone walls before making any electrical connections.
2. Secure Your Power Source. Mount the transformer to a wall or post near a GFCI-protected outdoor outlet. Keep it at least 12 inches above the ground to prevent water damage from heavy rain or irrigation.
3. Lay Out Your Cable Run. Lay the low-voltage cable along your desired path, keeping it near the base of the fixtures. Leave the cable resting on top of the soil for now; you will bury it later once the system is tested.
4. Make Solid Electrical Connections. Use the provided quick-connect hubs or the piercing clips on the fixtures to bite into the cable. Ensure the clips penetrate the insulation fully to make solid contact with the copper wire inside.
5. Verify Every Light Works. Plug the transformer into the outlet and turn it on to ensure all fixtures are functional. Check for any loose connections or dim lights, which usually indicate a poor wire connection.
6. Hide the Wiring Underground. Use a spade to cut a narrow slit in the turf or soil about 3 to 6 inches deep. Tuck the cable into the slit and step on the edges to close it, effectively hiding the wire from sight.