Features: USB 5V to 1.5V 3V4.5V 6V 7.5V 9V 12V 5.5x2.1mm Adjustable Voltages Cable with LED Dislpay suitable for Toy Game LED Lamp and other 1.5V-12V Device 6W output. The module cable is a adjustable stepsup/down power supply module with 2Bit LED digital tube display. Display output voltages in real-time. Rotate potentiometer to adjust output voltages. 1.30V-12V Wide voltages output,Support boost,with on off switching,1.30V-5V output 3W,6V-12V output 6W. 130cm cable,this cable can replace 9V AA+AAA Battery,cut the 5.5x2.1mm and connect to your devices. Wide Application: Mainly Used To Adjust The Brightness Of Single Color LED Lights, Such as 3528, 5050, 5630Strips LED lights for urbans lighting, holiday atmosphere, fan, car lights,car fan and so on. Specifications: USB input voltages: 5V 2A-3A 5.5x2.1mm output: 1.30V-12V 0.5A Material:plastic cable length: 130cm/51.1in Quantity: 1pc Package Includes: 1xUSB to 1.30V-12V 5.5x2.1mm cable note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.