1.Module Feature: Non-isolation booster 2.Ectifier system:Not synchronous rectifier 3.Input voltage:4.3V-32V 4.Output voltage: 5V-52V 5.Incoming current:4A(maximum) Colour:As the shows Transfer efficiency:94%(The highest)Normal efficiency for85% Switching frequency:400KHz Output ripple:50mV Load regulation:0.5% Voltage regulation:0.5% operating temperature:-40~+85 Function key: 1).Short press: input/output display 2).Moderate press: Enter the fine-tuning state .Increase or decrease the offset (the default is 0), when the voltage display inaccurate use .Short according to the regulation, long press or long according to 3).Long press: the state of low power consumption, the digital tube and the are out, the normal work of the module. Click the button again to . Normal display Clockwise to adjust output voltage: Clockwise----- increasing voltage Counterclockwise----reduce the voltage Material: Metal Contents: 1 x Step-up Module Only the above content, other are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.