ITEM NAME:Step-down Module Regulator DC-DC 9/12/24V to 5V Car USB Charger Circuits #gib Product Description Description: Step-down Module Regulator Converter DC-DC 9/12/24V to 5V Car USB Charger Power Supply Integrated Circuits Specification: Input: 7.5V-28V Output: 5V/3A Conversion efficiency: 96% (Max) Switching frequency: 1.5MHZ (Max) Typical 1MHZ Working temperature: -40℃-+85℃ Load capacity: maximum output 3A, 2A long distance running Scope of application: USB5V power supply equipment such as mobile power supply, mobile phone, tablet, etc. Product size: 42mm*16mm*5mm/1.65*0.62*0.19'' Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Included: 1 x DC-DC 9/12/24V to 5V Car USB Charger Step-down Module.Load capacity: maximum output 3A, 2A long distance running. Output: 5V/3A. Input: 7.5V-28V. Due to the different display and different light, the picture may not show the actual color of the item. If item is defective after 3 months, you can still send it back to us.