Features: Equipped with intelligent voltages regulation function, it can automatically adjust the output voltages according to equipment requirements, ensuring safe and stable operate of the equipment. The design combines plastic and metal to provide excellent wear resistance and shock resistance. Its flexible voltages regulation capability makes it great for photographers, engineers, and others who require power supply for multiple devices. An efficient cooling designed specifically for long-term use, ensuring that the equipment maintains low-temperature operate even under high loads. Quick connection without tools, users only need to plug and unplug to complete the installation. Specifications: Component: plastic + metal Type: refer pictures to selection please Size: approx. 4.72x3.14x1.69inch Input: DC15-21V Output: DC5V-13V 10A Package Includes: 1Pc Battery Voltages Regulator note: Other accessories demoed in the pictures is not included. Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.