The Hinkley Lighting 1543BK Landscape Path Light Landscape Black, 12V is a low voltage path light fixture using a 12 watts wedge bulb supported by a 21.5 high die cast aluminum frame in black finish. The 1543BK Landscape Path Light uses current at a voltage of 12 volts, while the normal domestic line voltage is 120 volts, which is used for hard wired domestic light fixtures. To convert the domestic voltage to low voltage, the 1543BK Landscape Path Light has to be connected to a transformer. While the 1543BK Landscape Path Light comes equipped with the wiring kit and heave duty composite ground spike, the low voltage transformer has to be bought separately. Ideally, a single transformer should be able to cater to the entire outdoor lighting. For this, the rated wattage of the transformer should be equal to the total wattage of all the low voltage fixtures. The main advantages of using low voltage light fixtures are lower power consumption, lesser risk of electrical hazards and easier wiring.