Dual USB output, 9V/12V/24V/36V to 5VDCDC, on-board charging, 3A stepdown module

Item: Double USB output module 3A Step-DownInput: 6V-40VOutput: 5V / 3A (MAX)Efficiency: 92% (MAX)Switching frequency: 150KHZWorking temperature: -40 Centigrade - + 85 CentigradeBaby Size: L_59mm W_21mm H_17mmLoad capacity: Maximum output 3A