ITEM NAME:DC-DC Boost 250W Step-up Constant Current Power Supply Adjustable LED YWH RQA Descriptio n Description: I. Output Voltage/Current Regulation Method: 1, Adjust The RV1 Potentiometer, According To Your Battery Or LED, Set The Output Voltage To The Voltage Value You Need. Such As 10 Series Of LED Voltage Adjustment 37V. 2. Adjust The RV2 Potentiometer Clockwise For About 30 Turns, Set The Output Current To The Minimum, Connect The LED, And Adjust The RV2 Potentiometer To The Current You Need. For Battery Charging, Put The Battery After Power, And Then Connected To The Output, RV2 To The Current You Need, (For Charging Must Be Used To Discharge The Battery To Adjust, Because The More Battery Left In The Power, The Less The Charging Current.) Please Do Not Adjust The Current By Short Circuit. The Circuit Structure Of Booster Module Cannot Be Adjusted By Short Circuit. Specifications: [Module Name] 250W Constant-Current Booster Module [Module Nature] : Unisolated BOOST Module [Input Voltage] : Dc10v-40v [Input Current] : 6A (MAX) [Static Operating Current] : 10mA(When 12V Rises By 20V, The Higher The Output Voltage, The More Static Current Will Increase) [Output Voltage] : 10-50v Can Be Continuously Adjusted (The Default Output Is 19V For.The Circuit Structure Of Booster Module Cannot Be Adjusted By Short Circuit. [Module Nature] : Unisolated BOOST Module. [Constant Current Range] : 0.2-6a. We'd like to settle any problem in a friendly manner.