A lower number or gauge means a thicker wire.
Low voltage landscape lighting wire length. Landscape Lighting Wire Low voltage landscape lighting wire or landscape lighting cable as it is often referred as is made of multi-strands of copper wire that are bound together. Common wires for landscape lighting are 10- 12- 14- or 16-gauge wires. A good rule of thumb for selecting proper wire size is determining your wattage.
Maximum of 180 watts per each 12-2 gauge wire run. Most low-voltage landscape lighting wire comes in two different sizes. Many low voltage light fixtures use quick connectors to make this process simple.
You must run them through a transfomer called an LED Driver. Its necessary to prevent voltage drop. Suitable for direct hiding in soil.
I was using 122 guage wire and was very much under the total wattage allowed for the 300 watt transformer however the lights were EXTREMELY DIM and kept tripping the. A lower number means thicker wire and greater capacity to carry the power current for longer distances. Attach the wire to each light fixture.
Wire the lighting system. The Problem With Voltage Drop. That first fixture receives the most voltage or power.
Modern outdoor lighting systems usually use LED lamps. Large Landscape Lighting Design System Power Draw Formula. Low voltage luminaires provide a very safe and simple system for installing outdoor lighting due to the fact that the majority of the power feed cables are carrying only a 12 volt current and therefore can be installed close to the ground surface.

