Fuel Cells descriptions We use high-quality raw materials, all materials are very suitable for the product, please rest assured to buy. 6-24v, 24v, 12v To 5v Usb Step Down Buck Module, Dc-dc Converter Charger. Features New Main Chip Made in USA. The Max Output Current 3A, Long Time Use 2.1A, Enough Use. New Design, 3 Solid State Ceramic Capacitors (MLCC). Synchronous Rectification, High Efficiency, 6.5V to 5V 0.7A Can Up to 97.5%, 12V to 5V 1A Can Up to 94%. Specifications: Module Properties: non-isolated Buck Module (BUCK) Synchronous Rectification Input Voltage: DC 6-24V Output Voltage: 5.1-5.2V Output Current: 3A MAX Conversion Efficiency: can Up to 97.5% (6.5V Step Down to 5V 0.7A) (after Short Reverse Protection and Fuses Test Value) Switch Frequency: 500KHz Output Ripple: 10mV Around (12V to 5V3A) 20M Bandwidth Output Indicator: Output Voltage Indicator is Red Operating Temperature: Industrial Grade (-40 Celsuis to + 85 Celsuis) (the Higher the Ambient Temperature, the Lower the Output Power) Output Overvoltage Protection: Yes, Input 1.5A Fuse, Output 5V Have 300W TVS Tube Clamp Protection. Full Load Temperature: 30 Celsuis Static Current: 0.85 MA Load Regulation: ± 1% Voltage Regulation: ± 0.5% Dynamic Response Speed: 5% 200uS . Products number : SOMONO86517