12-24V Dual USB 5V 4.2A Charger Motorcycle LED Voltmeter Volt MeterDescription: Dustproof cover designCompact design 2in1 Car USB Charger and Voltmeter、 great for charging and voltage checking purposeWorks great as a replacement or extra dual usb charge in car switch panel、with LED light VoltmeterCharged for any device including digital cameras、 PDAs、 mobile phones and USB accessoriesUniversal for any 12-24V systems  Specification: Color: BlackMaterial: PlasticVoltmeter LED Color: Blue、 RedPin Number: 2 PinsMount Hole Diameter: 28.5mmInput Voltage: 12-24V DCOutput voltage: DC 5VOutput current: 4.2AVoltage Range: 6-28V  Package Included: 1 x Motorcycle Dual USB Charger