The lower the number, the thicker the wire and the greater its capacity. Low-voltage cable is commonly available in 12-, 14-, and 16-gauge. It runs from the transformer to each light fixture in the system. Low-Voltage Electrical Cable: The cable used for landscape lighting is specifically made for burial underground. For example, if you plan to string together 10 18-watt light fixtures, then you'll need a transformer with a wattage output of at least 180. To determine which size transformer you need, simply add up the wattage of all the lights in the system. Models range from about 44 watts to 900 watts. Transformers are rated according to the maximum wattage output. Play icon The triangle icon that indicates to play Most transformers are equipped with a 24-hour timer that allows users to decide when the lights go on and off automatically. It plugs into a GFCI-protected outdoor electrical outlet and steps down the house current from 120 volts to 12 volts. Transformer: The power behind every low-voltage system is the transformer.
Nearly every system, regardless of its complexity, is composed of four basic parts. There are dozens of low-voltage lighting fixtures and accessories available in a variety of styles, sizes, colors, and finishes. They're less expensive, easier to install, safer, and use less energy. For DIY installation, though, we highly recommend low-voltage systems that operate on just 12 volts. Some landscape lighting systems operate on "line voltage," the 120-volt current from your house. These versatile, weatherproof lights can be used to illuminate pathways, flower beds, trees, fences, driveways, stone walls, doorways, and more. Landscape lighting describes a large and varied family of outdoor lighting fixtures.
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