(Note: w/ Barrel Round Plug. NOT USB Connector. Someone may have bought it by mistake. Please Check For Compatibility With Your Unit. Thanks.) Onerbl New Global AC / DC Adapter Compatible with Verilux HappyLight Lucent VT22 VT22WW3 VT22AC LED Bright Happy Light Therapy Lamp DC19V 0.65A 1A Power Supply Cord Cable PS Wall Home Battery Charger Mains PSU (w/ Barrel Round Plug. NOT USB Connector. Someone may have bought it by mistake. Please Check For Compatibility With Your Unit. Thanks.) Tested Units. In Great Working Condition. Brand New, High Quality Replacement AC/DC Power Charger Adapter Input: AC 100-240V 50/60Hz Auto (Worldwide AC Input) Over Voltage Protection, Over Heat Protection Onerbl AC adapters are manufactured with the highest quality materials tested and designed to meet the power needs of your device. This power supply allows you to operate your device or charge its battery from electrical power outlets.This adapter converts AC power into the DC power required by your device. Onerbl adapters are great solution during travel.This adapter has been validated and tested to ensure it will work with your device.