This compact sized regulated power supply is ideal for all devices drawing up to 2 amps of current. It is fully regulated ensuring constant, accurate DC power to any type of electronic device. The rotary selector can switch between six popular voltages (3-4.5-6-7.5-9-12V DC). The color coded binding posts make connections easy. This unit works well with the Detachable Plug Kit 120_537 by supplying an easy termination for the popular DC plugs on the market today.