This item is a panel, made of aluminium and other material to keep it water-tight, best for marine. With Real-time of battery voltage. Suitable for both systems. Dual USB charging ports to charge your phones, and , etc. Easy to install, can be installed horizontally. Features - Color: Black. - Material: ABS, nylon, aluminum plate, high and low temperature resistant material. - Size: About 18.4x10.8x8cm/ 7.23x4.24x3.14 inch. - Working temperature:-25 degree centigrade-80 degree centigrade - Maximum power: 240W - Input voltage: DC12V/24V - Output voltage: 5V - Output current: 3.1A 10A 20A - level: IP65 - range of voltmeter: 6-30V - Made of aluminium and other material to keep it water-tight, best for marine. - Easy to install, can be installed horizontally. - Real-time of battery voltage. Suitable for both systems. Panel is pre- . - Dual USB charging ports to charge your phones, and , etc. - , perfect for your machine, Metal aluminum face panel. Totally . Package list: 1 x combination 4 x self-tapping screws