Plug-in adapters delivering a stabilised voltage output continuously adjustable between 5and24Vdc model Output: for 5 Vdc → 6.5 Vdc, a current of 1.5 A; for 6.5 Vdc → 24 Vdc the current decreases from 1.5 A to 400 mA. The type 1 model output has a connector with a 2.1 mm internal diameter and a 5.5 mm external diameter. The polarity is positive inside the output connector.