Instruction: Voltage Adjustment: Power on module while not connect to load, then adjust "V-ADJ" potentiometer clockwise to increase, counterclockwise to decrease.Due to large output capacitance capacity, response be slow when adjust high voltage to low voltage. Current Adjustment: Adjust "CC A-ADJ" potentiometer counterclockwise about 30 circles to minimize the output current before connecting to load.Then adjust "CC A-ADJ" clockwise to the current value you need.If you use the module for battery charging, connect to output after battery is fully discharged. Because if the more energy is left in battery, the less charging current be. Low Input Voltage Protection Adjustment: If we set a low input voltage protection for a 12V battery, connect input to a 10V voltage, then adjust RV1(clockwise to increase, counterclockwise to decrease) till UVLO light up.Now the protection voltage is 10V, that is to say, when battery voltage drops to 10V, module 't step up voltage and the output voltage be same as input voltage. Note: 1. Output wiring can not be reversed or short circuit.2. If the module is connected to inductive load, the minimum input voltage should be higher(e.g. 24V) and maximum output power should be lower(e.g. 500W).3. If a storage battery, switch power supply, solar panel or electric generator is used as input power source, the low voltage protection value should be adjusted lower, otherwise it might cause damage. Specifications: Type: Non-isolated step-up module (BOOST) Input Voltage: DC10V to 60V Max. Input Current: 30A(input voltage 10V to 30V) 2(input voltage 31V to 60V) Quiescent Current: 15mA( increase when convert 12V to 20V) Output Voltage: 12V to 90V (adjustable, default is 19V) Max. Output Current: 20A (related to the input and output voltage difference, the greater voltage difference is, the s