Features: 1. The voltage and current (current limiting value) are set by numerical control. The voltage step is 0.01V/0.1V, the current step is 0.001A/0.01A, and the display is . 2. LCD displays statistics of input voltage, output voltage, temperature, current, power, capacity and time. With USB female output, it is convenient to connect USB fan and other USB interface devices. 3. Screw free quick wiring terminal, press type wiring and wire pulling, no need to screw, convenient and fast. With intelligent fast charging , it can solve the problem of insufficient power supply of USB input port. It supports mainstream fast charging protocols, QC2.0 3.0, SCP , and can also select no deception or automatic deception mode. 4. High power 15W, 2A current, can be used for fan speed regulation, desktop power supply, adjustable charger, router power supply, etc. Adjust the output voltage at will, and limit the current to 0-2A (wide input 4-13V, wide output 1-30V at will, with short circuit protection, short circuit will not burn) 5. As a USB charging , the charging voltage and maximum charging current can be adjusted at will (any voltage, with constant current, anti back , meeting the charging requirements of batteries) Multiple protection (short circuit, over-current, over temperature, over power, over-voltage protection, charging anti reverse protection) Specifications: Input voltage: 4-13V Output voltage: 1-30V Output current: 0-2A Output power: less than 15W Voltage display: resolution 0.01V, precision (0.5%+3 words) Current display: resolution 0.001A, range 0-2A, precision (0.5%+3 words) Power display: 0.00W-15.0W Temperature protection Working current: about 30mA Charging anti backflow: Yes, it can be directly connected to the battery for charging without adding a diode Short circuit protection: Yes Size: 80 x 40 x 16mm Material: PCB+Metal colour: Black Package Contents: 1 x -DP3D USB Power Supply Module Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.