Function:
1. IN/OUT button: short press to switch input voltage, output voltage and module temperature display, long press to switch output current and output power display;
2. ON/OFF button: short press to control the output ON or OFF, long press to set the default output status ON or OFF for the next power-up;
3. CC is the current setting potentiometer, turn clockwise to increase the set current, when the load current reaches the set current, it will enter the constant current state, and the CC constant current indicator (red) will light up;
4. CV is the voltage setting potentiometer, clockwise rotation, can increase the output voltage, ON indicator is the output status indicator, when there is voltage at the output terminal, bright, otherwise extinguished

Usage:
1. Use as a lift voltage module with over-current protection;
2. Use as a battery charger;
3. Use as a high-power LED constant current driver module

Parameters:
Input Voltage: 5.5-30V
Output Voltage: 0.5-30V
Output Current: Up to 4A
Output Power: 35W
Voltage Display Resolution: 0.01V
Current Display Resolution: 0.001A
Conversion Efficiency: Approx. 88%
Soft Start
Input Reverse Connection Protection
OutputBackflow Prevention
Short Circuit Protection
Temperature Protection: 100℃
Power Protection: 35W
Overcurrent Protection: 4A
Operating Frequency: 180KHz
Fan Rotation Conditions: Size: 72*59*32mm
Mounting Holes: 3mm Diameter
Weight: 81g

Attention:
1. Very high power with load module startup soft start may fail
2. Input voltage 5V, can also be achieved lift voltage, but the voltage and current measurement is not accurate; below 4.7V, under-voltage protection
3.When current greater than 3A or power greater than 20W or temperature greater than 40 ℃, the fan will start automatically
4. Input IN- must not be shorted to output OUT- otherwise the constant current function is disabled
5. Make sure that the power of the power supply is always greater than the power required by the output load
6. If you want full load output, the input voltage should be more than 8V, when the input voltage is 5V, the output power is about 15W, the voltage and current meter is invalid. Module current value of up to 4A, the premise is limited by the maximum output power, such as output 17V, the current should not be greater than 2A
7. module with output short-circuit protection, short-circuit protection module automatically shut down the output, to the module can be restored by re-powering, if your power supply does not have output current limiting protection, it is recommended that the front of the module input series of fuses to improve the safety coefficient
8. Module has input undervoltage protection function, the default is about 4.7V, lower than this value, the module will automatically disconnect the output, to the module can be restored by re-powering (pay attention to the voltage at the module port, when the input current is relatively large, do not ignore the partial voltage on the input wires)

Package Content:
1 * Boost Buck Converter