The 20 watt driver is a Class II power supply rated for operating LEDs. It features a universal voltage input and a constant current output. The encapsulated electronics and inherent protection adds reliability to both the driver and LEDs connected. To avoid damaged to LEDs, the number of fixtures connected must be within the range limits listed for the driver and be wired in series. Use 18-20 gauge wire for remote installation up to a maximum of 150ft. National and local codes must be followed when mounting driver inside a junction box.