ITEM NAME:1Ps Dc-Dc Usb Step Up/Down Power Supply Module Boost Buck Converter 5V To 3 F9I4 1Ps Dc-Dc Usb Step Up/Down Power Supply Module Boost Buck Converter 5V To 3 F9I4 USB boost/buck power supply module,.One button to turn off the output;. Input 1.2-2V,output power within 2W;. Input 2V-20V,output power within 3W;. Input 20V-24V,output power with in 2.5W;. Display:3Bit digital tube display;. Output power.
