Unplugged AC Adapter for LED500D The Unplugged 2775 AC Adapter connects to the DC input port on the back of Unplugged LED500 lights and provides continuous power to the light from a household wall socket. It may be connected to the light at the same time a 6817 Unplugged battery is also installed. The 3-part power switch on the LED500 allows you to select power from the battery or AC source in this situation. Note: this AC power supply will run the LED light continously. However, it will NOT charge the battery. Use the Unplugged battery charger (6922) included with the light for charging purposes.