I bought it twice and return it twice because it came with an output of "5v 2.1a" not "5v 1a". may i know what's wrong with that?

The amperage, indicated by the ""a" when combined with the voltage, indicated by the "v", informs you on how much Power is available for your device. You don't have to use all the power, its just available for your device. The "v" has to match your device. If your device says 5v then you must have a power source that provides 5v, not 12v. But the "a" has to equal or greater then your device. So, a source of 5v 2.1a, is good for any device which needs 5v and 0 to 2.1a. Nut not 12v or 3amps (a)

Does the kit come with installation instructions

There are no Instructions included. However it is pretty straightforward though. Red to the power source(+) you choose and black is ground(-). if you have no experience with automotive wiring, I suggest you enlist the help of a pro.

Does anyone know if this wheelwitness kit would work with a rexing v1p 3rd gen? this one is output 5v 1a, the rexing is 5v 1.5a?

If the camera has the same specification, it might work.

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Dash Cam Hardwire Installation Kit - Hard Wire 12V to 5V Mini USB - for HD PRO & All Mini USB Dashboard Camera Power Supply Car Charger DVR Power Box for Stealth Installation - 12 Feet

Dash Cam Hardwire Installation Kit - Hard Wire 12V to 5V Mini USB - for HD PRO & All Mini USB Dashboard Camera Power Supply Car Charger DVR Power Box for Stealth Installation - 12 Feet

Q: Is output 5V 1A?

I personally do not know, but if you open the website for the WheelWitness Dash Cam Hardwire Installation Kit - Hard Wire 12V to 5V Mini USB and go to the fifth bulleted descriptor. It reads "Input: 12-24V | Output: 5V 1A".

Product ID: 75470258

Details

Brand
WheelWitness
Color
HD PRO
Item Weight
2 Ounces
Manufacturer
WheelWitness
Special Feature
Hard wiring

📏12 feet long cable

🔌12V to 5V conversion

🔒Stealth installation

Description

🔧 Power Up Your Drive with Stealthy Precision!

EXTENDED REACH - 12 feet of cable for flexible installation options.
STEALTHY SETUP - Hide your wiring for a clean, professional look.
RELIABLE PERFORMANCE - Input range of 12-24V ensures consistent power delivery.
SEAMLESS POWER SUPPLY - Transform your vehicle's 12V to 5V effortlessly.
UNIVERSAL COMPATIBILITY - Works with all mini USB dash cams for ultimate convenience.

The Dash Cam Hardwire Installation Kit provides a seamless solution for powering your dashboard camera. With a generous 12-foot cable, it allows for easy installation while keeping wiring hidden for a clean aesthetic. Compatible with all mini USB dash cams, this kit converts 12-24V input to a reliable 5V output, ensuring your camera stays powered without compromising your vehicle's interior.

Specifications

ASIN	B07F5VF4SQ
Brand Name	WheelWitness
Color	HD PRO Hardwire
Connectivity Technology	USB
Customer Reviews	4.5 4.5 out of 5 stars (21)
Included Components	Cable, Installation Kit
Item Weight	2 Ounces
Manufacturer	WheelWitness
Model	WW-Hardwire1
Other Special Features of the Product	Hard wiring kit for dashboard camera

Reviews

I**N

Works Great

I had my mechanic hook the dash cam up directly with the kit and it works very well. All the wires are concealed. Camera is fantastic

23.07.2019

C**O

Thank you

Great for making the camera work

15.09.2019

R**N

That is came quick

Thanks

17.06.2019

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