Feature:[4.8 Amps at 5 ]Charge two devices simultaneously at fast speed. Built in safety to protect your devices from overcharging, excessive heat and current. Made of heat-resistant, Certified by & UL2089 with Over-load, Over-current and Short Circuit Protection to charging safety, meanwhile, built-in Smart IC ensures the circuit 't be burnt out if wrong wiring. [Super Fast USB Charger]4.8 AMPS FAST DUAL USB CHARGE: It has 12-24 DCV input and power outlets are 2.4A each port (4.8A total) for fast charging. Amps is a measurement how fast electricity is moving. The bigger the amperage equals to faster charging. This makes this charger 40% faster than conventional chargers. [LED Voltage Display] builts in digital LED voltage monitor, dispalys the real-time accurate voltage status of your vehicle's battery for preventing problems caused by low voltage, the light also makes quick and easy to find USB ports in the dark or at night [5 Gang Rocker Switches Panel]These switches are newly design to increase durability. This switches are rated at 10000 on and off cycles without failure. Splash-proof panel face, water resistance caps and anti-seepage rubber ring .Blue LED light indicator, waterproof board, Specification: Switch System: Water-resistant enclosed Rocker switch Light color: Blue Number of lights: double lights Voltage: 12V / 24V Operating Temperature: -25 ~ 80 IP Rating: IP65 Electrical Life: 10000 make and break cycles Wiring : Red Wire connect to battery positive pole, Black Wire connect to battery negative pole. Colour: Black Material: ABS + PC + Aluminum Package Contents: 1 Switch Panel 1 set x Accessories Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.