Best Pro Lighting's low voltage, professional grade, landscape lighting 300-watt transformer with stainless steel housing, multi-tap 12-volt, 13-volt, 14-volt, 15-volt, photocell, and timer. The stainless steel 300-watt transformer comes with a digital display for easy programming with a photocell that will turn your lights on at dusk, with an option of waiting 1-9 hours to turn them off, auto to use from dusk to dawn, or with an option of constant on to override the photocell and connect it to a plug-in timer. Best Pro Lighting's 300-watt transformer can be used both indoors and outdoors and is compatible with both halogen and LED bulbs. This 300-watt transformer is UL listed and has AC output. Best Pro Lighting's entire transformer lineup comes with a lifetime warranty. This low-voltage transformer's usage is for low-voltage landscape lighting fixtures.