Features: _x000D_ This is a great 1200W DC to DC step-up power supply module for electric equipment, digital products, laptop, etc. _x000D_ Input and output are designed with screw terminals for convenient wire connection and disconnection. _x000D_ High efficiency, the maximum conversion efficiency can be 97% and efficiency is related to input/output voltage, current and voltage difference. _x000D_ There is a big heat sink and cooling fan that would ensure a better heat dissipation. _x000D_ It can also be used as a driver for high power LED lights or voltage regulator for solar panels. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Type: Non-isolated boost module_x000D_ Input Voltage: DC10V to 60V_x000D_ Max Input Current: 20A (could reach 25A at 12V-24V when adding cooling fan)_x000D_ Quiescent Current: 15mA(will increase when convert 12V to 20V)_x000D_ Output Voltage: 12V to 83V(continuously adjustable, default 19V)_x000D_ Max Output Current: 18A (related to the input and output voltage difference, the greater voltage difference is, the smaller output current will be. please enhance heat dissipation when current is over 10A)_x000D_ Constant Current Range: 0.5A to 18A(+/-0.3A)_x000D_ Reverse Input Protection: Yes (150A MOS)_x000D_ Lower Voltage Protection: Yes (9V to 50V adjustable)_x000D_ Temperature Control Fan: Yes (Fan starts to work if more than 55)_x000D_ Operating Temperature: -40 to 85(if temperature is too high, please enhance heat dissipation)_x000D_ Frequency: 150KHz_x000D_ Conversion Efficiency: 92% to 97% (Efficiency is related to input/output voltage, current and voltage difference. The smaller difference is, the higher efficiency will be)_x000D_ Input Over-current Protection: Yes (automatically protect when input is more than 25A, and power supply voltage will not increase)_x000D_ Short Circuit Protection: Yes (input 30A fuse)_x000D_ Wiring Method: Terminals (Please use large current copper wire)_x000D_ Size: 130 x 64 x 52mm / 5.12 x 2.52 x 2.04"_x000D_ _x000D_ Voltage Adjustment:_x000D_ 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 will be slow when adjust high voltage to low voltage._x000D_ _x000D_ Current Adjustment: _x000D_ Adjust "A-ADJ" potentiometer counterclockwise about 30 circles to minimize the output current before connecting to load. Then adjust "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. _x000D_ Low Input Voltage Protection Adjustment: _x000D_ 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 won't step up voltage and the output voltage will be same as input voltage. _x000D_ _x000D_ _x000D_ Note:_x000D_ 1, Input voltage must be more than 10V._x000D_ _x000D_ 2, If a switch power supply is used as input, module should be connect to power and voltage should be adjusted well before connecting to load. When connecting to load, make sure to turn off the power supply first. _x000D_ 3, Power is related to input voltage, and when input voltage increases, power will increase.The maximum input current is 20A.For example, When input voltage is 12V, maximum power is 240W; input 24V, maximum power 480W; input 30V, maximum power 600W. _x000D_ _x000D_ Package Includes:_x000D_ 1 x Module