VIOFO HK4 Hardwire Kit with 8pcs Full Set Circuit Fuse Tap
- On-Dash Camera
- 1
- 1
- HK4 Hardwire Kit
- Better rated than 78%
A compatible, complete-kit hardwire solution for the specific VIOFO cameras it lists, with the fuse taps included so nothing extra needs to be bought.
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How it ranks among the 18 on-dash cameras we track
4.5★ across 1,200 Amazon ratings, Bayesian-smoothed toward the category average.
1,200 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
2,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 18 on-dash cameras we track - how the scorecard works · full on-dash cameras data report. Confidence: high - strong rating volume and complete data.Updated 8 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Compatibility, not features, is what defines the VIOFO HK4: it is a hardwire kit that wires a compatible VIOFO camera into the vehicle's electrical system for continuous parking-mode recording, not a dash cam on its own.
VIOFO states this kit fits the A329 series, A229 series, A119 Mini 2, A139 Pro, WM1 and T130 cameras, and explicitly does not fit its other camera series, so checking the exact model before buying matters more here than with most accessories. It ships with 8 circuit fuse taps included, which is not true of every hardwire kit variant VIOFO sells separately.
- Fits VIOFO A329/A229 series, A119 Mini 2, A139 Pro, WM1, T130 only
- 8 circuit fuse taps included
- 4-option low-voltage cutoff protection
- 12V and 24V vehicle compatible, 13.1 ft cable
Who it's for
Owners of one of the six listed VIOFO camera models who want continuous parking surveillance instead of only recording while the engine runs. Not for other dash cam brands or other VIOFO camera series.
Strengths and trade-offs
Drawn from this product's published specifications.
- Confirmed fit for six specific VIOFO camera series
- Includes 8 fuse taps, no separate purchase needed
- Adjustable low-voltage cutoff protects the car battery
- Automatic parking-mode switching via ACC detection
- Not compatible with other VIOFO series or brands
- Hardwiring is a more involved install than plug-in cables
- 13.1 ft cable may be short on larger vehicles
Performance notes
Once wired in, the kit keeps the camera powered when the engine is off, with a four-position low-voltage cutoff so it stops drawing from the battery before the vehicle fails to start. ACC detection switches the camera between normal recording and parking mode automatically as the ignition turns on and off, so no manual mode switching is needed day to day.
Specifications
| Brand | Viofo |
|---|---|
| Model | HK4 |
| Construction & materials | |
| Color | HK4 Hardwire Kit |
| Compatibility & installation | |
| Compatible with Vehicle Type | Car, Truck, Bus, Van, Minivan |
| Compatible Devices | VIOFO A329 series, A229 series, A119Mini2, A139Pro, WM1, T130 |
| Connectivity Technology | USB Type-C |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Number of Items | 1 |
| Other Special Features of the Product | Low Voltage Protection, 24 Hours Parking Surveillance, Automatically switch parking mode |
| Video Capture Resolution | 1080p |
| Auto Part Position | Front |
| Mfr Part Number | HK4 |
How it compares
This product against the closest alternatives we track in on-dash cameras.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| VIOFO HK4 Hardwire Kit with 8pcs Full Set Circuit Fuse TapThis product | 4.5 / 5 | 1,200 | 4.3 / 5 |
| ROVE R2-4K Dual Dash Cam Front and RearRove | 4.5 / 5 | 14,000 | 4.5 / 5 |
| IIWEY N6 360° Dash Cam 4 ChannelIiwey | 4.4 / 5 | 8,700 | 4.4 / 5 |
| REDTIGER 4K STARVIS 2 Dashcam Front RearRedtiger | 4.3 / 5 | 6,800 | 4.4 / 5 |
| galphi 4K Dash Cam Frontgalphi | 4.4 / 5 | 1,400 | 4.3 / 5 |
Similar on-dash cameras from other brands
Questions about the Viofo HK4
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Is the VIOFO HK4 compatible with any dash cam?
No, it is built for six specific VIOFO series (A329, A229, A119 Mini 2, A139 Pro, WM1, T130) and is not compatible with other VIOFO cameras.
Does the VIOFO HK4 include fuse taps?
Yes, this version ships with 8 circuit fuse taps included, so no separate purchase is needed.
Will the VIOFO HK4 drain my car battery?
It includes a low-voltage cutoff with four selectable thresholds that stops powering the camera before the battery drops too low.