1、Adjustable step down module with overcurrent protection function 2、The module has LCD display, it is more clear and durable 3、Adopted of high quality electronic components, and accuracy process, ensure for the durability 4、With a bag of accessories, easy and convenient to assembly 5、Can be used as a battery charger and can be used as a constant current LED driver module 1 x Step Down Module1 Bag Assembly Accessories Item Type: Step Down ModuleModel: WD3610Input Voltage: 7V-36VOutput Voltage: 2-32V adjustable (Can only be used as step-down module. the input must be greater than the output of 1V)Output Current: Adjustable. Maximal 10A (Recommnnended used under 8A. less than 5A or 70W can be natural cooling, please strengthen the heat dissipation when exceeds the value. Constant-current regulation needs the output voltage must more than 2V. current regulation, only in the condition of constant current to be effective)Output Power: Maximal 150W (Reconunended use in under 100W. Large voltage difference use please reduce power)Working Temperature:-20℃~+75℃ (Pay attention to power tube temperature when using. exceeds please enhance heat dissipation)Accuracy: 0.01V, 0.01A, 3-digit Display, current unit is AConversion Efficiency: up to 95%Short Circuit Protection: Yes (In constant current state. It is the value of constant current setting at present)Input Reverse Polarity Protection: Yes Anti-reflux Output: No (Please add a diode for charging!)Installation: up and down both sides of the acrylic sheet, 8pcs standoffs, 8pcs 3mmn screws.Connection: connection terminal or solder tenninal, "IN" is input, "OUT" is output. Module Size: Approx. 80 x 53 x 35mm / 3.1 x 2.1 x 1.4inCalibration:This module has calibration function. don't worry about the problem of inaccurate measurements. If you found inaccurate measurement, can use the following method of calibration. Just for the first time using a calibrated once!Voltage Calibration: when power off status, keep press the "set" key, power on. enter the voltage calibration mode, then the LCD screen starts flashing, release the "set" key, press the "Set" button to increase, press the "ENT" button to reduction. until calibrated to the correct input voltage. For example: the input voltage is 12.65V, then the voltage was adjusted to 12.65V, then automatically saved after 2 seconds. power off. calibration is complete!Special Instruction:Some customers feedback that the output voltage of module can not be adjusted When they just receiving the item, this is because the module factory default output voltage at about 20V. When you encounter this problem. Please counterclockwise rotation ADJ-V potentiometer 10 laps or more. until the voltage value changes. then the module can be properly adjust the voltage.Setting Instruction:Setting key to set the display mode, it have three types: 1. F-0 mode: Display output voltage; 2. F-1 mode: Display input voltage; 3. F-2 mode: Alternating display input or output voltage;Instructions: Press the "SET" button to cycle through the three display modes, the corresponding indicator will be on or off, then press the "ENT" button to save and exit. if separate press "ENT" button to switch backlit LCD screen.