This Alpine Industries AC Adapter is an essential accessory that works with Alpine automatic soap dispensers. It works well with the Automatic Liquid Soap Dispenser (ALP421-WHI and ALP421-GRY) and Foam Soap Dispenser (ALP422-WHI and ALP422-GRY). Its high quality plastic construction is built for long term use. Equipped with a long cord and a round tip connector, it can be plugged into any wall outlet. It features AC 100-240V, 50-60hz input and DC 6V output. It is a safer and more cost-efficient alternative to traditional batteries, and it ensures that the automatic soap dispenser is always working.