1.DC IN 2.LED indicator 3.DC OUT(TYPE-C) 4.Solar panels 5.Lock switch Function declaration: 1.DC IN: it can charge the solar bank with an adapter(DC 2V/1A, Spec.: Φ2.5mm/0.65mmw stylet) 2.DC OUT: Solar DC output to Hunting Camera,(TYPE-C port, install on top of machine) 3.LED indicator: When the adapter recharges the solar power, the red light is on, once fully, the red light is off. when the solar bank is recharged, the blue light is on, once fully, the blue light is off 4.