This is a panel with 6 . Simple installation, even if a green hand can install it perfectly within minutes.Wide range of uses, can be used as interior and exterior of the increase in all kinds of electrical devices on / off key. Six-digit combination button ON-OFF , includes voltage display meter , 5V 3.1A USB charger, socket. Features - Color: Black. - Material: ABS, nylon, aluminum plate, high and low temperature resistant environmental protection 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 - Protection level: IP65 - Detection range of voltmeter: 6-30V - Six-digit combination button ON-OFF , includes voltage display meter , 5V 3.1A USB charger, socket. - USB and are blue, voltmeter is red. - The aluminum plate is resistant to high and low temperature, flame-retardant and environmentally friendly material. Safe and . - It can be used as , fog light , viewing width light , refrigerator , vacuum cleaner , external equipment to get power. - ABS, metal parts, strong and durable. Package list: 1 x combination 4 x self-tapping screws