ITEM NAME:DC-DC Step Down Car Charger Power Module 9V/12V/24V to 5V 3A USB Buck Board #JT1 Product Description Description: DC-DC 9V/12V/24V to 5V Step Down Charger Power Module 3A Output USB Car Charging Regulator Buck Voltage Board Descriptions: This product is a switching step-down DC-DC converter module; fixed switching frequency 150KHz, the chip has excellent linearity adjustment and load regulation, fixed output 5V. The chip integrates reliability modules such as overcurrent protection, overtemperature protection, and short circuit shutdown. Specifications: Input: 5V-36V Output: 5V/3A Conversion Efficiency: 96% Switching Frequency: 150KHz Working Temperature: -40Â °C-+85Â °C Load Capacity: Maximum Output 3A, Long-Term Work 2A Product Size: 38 X 16 X 5mm/1.5 X 0.63 X 0.2" Packing Weight: 6g Scope of Application: USB 5V.The chip integrates reliability modules such as overcurrent protection, overtemperature protection, and short circuit shutdown. Output: 5V/3A. Input: 5V-36V. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.