ITEM NAME:9V/12V/24V/36V to 5V DC-DC Step Down Car Charger Solar Power Supply Module Product Description Description: Specification: Input: 6V-40V (DC5.5/2.1 port, connection terminal) Output: 5V/3A (MAX) (with Resistance Recognition for Apple) Efficiency: 92% (MAX) Switching frequency: 150 KHZ Working temperature: -40℃ +85℃ Load capacity: maximum output 3A (connecting two mobile phones at the same time) Applications: Mobile Power Supply, Mobile Phone, Active Tablet USB5V Device Products Product size: 50*35*13mm/1.96*1.37*0.51'' 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 understand. Included: 1 X 9V/12V/24V/36V to 5V DC-DC Step Down Module.Included: 1 X 9V/12V/24V/36V to 5V DC-DC Step Down Module. Output: 5V/3A (MAX) (with Resistance Recognition for Apple). Due to the different display and different light, the picture may not show the actual color of the item.