Feature: 1. [BUCK MODULE] The buck module has an input voltage of 14‑40V and an output of 12V 3A, which is highly practical. 2. [HIGH EFFICIENCY] Buck regulator module adopts synchronous rectification scheme, with large current and high efficiency. 3. [HIGH PERFORMANCE] Made of excellent materials, has strong vibration resistance and good electromechanical performance. 4. [WIDE VOLTAGE RANGE] Wide input voltage range, can withstand relatively large fluctuations, safe in operation. 5. [WIDE APPLICATIONS] Commonly used in industrial control motherboards, toys, furniture, communications and car power supplies, etc. Specification: Item Type: Buck Module Product Material: PCB Product Model: XH-M161-12V Input Voltage: 14-40V Output Voltage: 12V Maximum Output Current: 3A Application: Industrial control motherboards, toys, model airplanes, single chip computers, home appliances, communications, car power supply security monitoring, field collection, street lights.. Package List: 1 x Buck Module Note: 1. Inputting a voltage greater than 40V may cause permanent damage to the module. To ensure safety, it is recommended to use the input voltage within 35V.2. The output current needs to be less than 3A, more than 3A will burn the module.3. If the output current is greater than 2A (or the output power is greater than 10W) for a long time, please add the heat sink input (IN+) positive and (IN‑) negative. Output (OUT+) positive (OUT‑) negative.4. Input Voltage Range: 14V to 40V.5. The input voltage must be more than 1.5V higher than the output voltage. Since it is a buck module, the input voltage must be higher than the output voltage.