Description: Step-down Converter:Input Voltage: DC 18V-21V; Output Voltage: DC 12V,DC 5V-13V; Output Current: 10A Max; Efficiency: ≥ 95%. Ideal for powering golf carts, power wheels, DIY toys, RC cars/trucks, LED lights, cameras, etc. Built-in over low voltage protection,auto shut off if the battery voltage is lower than 14.4V, protects your battery and 12V device. For Ryobi Batteries:The DC power wheel adapter is perfectly compatible with Ryobi 18V ONE+ batteries, including P102, P103, P104, P105, P107, P108, P109, PBP002, PBP003, PBP004, PBP005, PBP006, P189, P190, P191, P192, P193, P194, P195, P197, and more .