Low-Voltage Garden Lighting: Plan, Install, Enjoy

DIY low-voltage lighting is affordable, safe, and transformative. Four components: transformer, cable, fixtures, lamps. Kits simplify shopping.

Transformer Sizing

Converts 120V to 12–22V. Mount in garage/shed on dedicated GFCI outlet. Total lamp wattage + 25% margin = transformer size. Example: 200W lamps → 250–300W transformer.

Multi-Tap for Long Runs

Over 15 ft cable? Use multi-tap (12V, 15V, 22V taps). Voltage drops over distance; higher tap compensates. Single-tap 12V maxes at ~15 ft; 22V runs hundreds of feet.

Cable & Connections

10 or 12 gauge only. Thicker for long runs/many lights. Bury shallow or surface-run (low voltage = safe). Connect with wire nuts + silicone seal—skip cheap quick-connects.

Fixtures: Endless Choice

Path lights, spotlights, well lights, deck lights—styles for every taste. Your infrastructure handles the load; swap fixtures anytime.

Plan cable routes, fixture placement, and transformer location first. Then install in a weekend. Nights in your garden will never be the same.