Wire connection method: connect wires to the corresponding position of " + ,- "pole,it is with reverse protection when connect it opposite Installation method: Do not have to drill a hole,just fasten it with screws. Working voltage: DC 12V-24V Dual USB car charger output voltage/Current: 5V/3.1A Voltmeter Measuring range: 6V-30V Led Light color of voltmeter and usb port: Silver shell:Green LED Light Purple shell:Blue LED Light Blue shell:Red LED Light Size:162 x 85 x 54mm/6.38 x 3.35 x 2.13"(L x W x T) Weight:176g Package included: 1 x Dual USB Car Charger + LED Digital Voltmeter + Power Socket 6 x Blue Terminals 2 x Screws Brand:RDEXP Guarantee: Each item with a unique Manufacturing Part Number label on the inner package to confirm it is the qualify checked and genuine item sold from our store ,when you have any questions,please provide us the MPN label first.
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