Introduction
The Diamond Lark Dash Cam Hardwire Kit LF-D100 is designed to provide a continuous power supply to your dash camera, enabling features like 24-hour parking surveillance and protecting your vehicle's battery from discharge. It converts 12V-24V vehicle power to 5V Type C USB output, ensuring stable operation for your dashcam.

Image: Diamond Lark Dash Cam Hardwire Kit enabling 24/7 parking surveillance in a vehicle. This kit ensures your dash cam receives continuous power for monitoring.
Setup and Installation
Package Contents:
- Diamond Lark Dash Cam Hardwire Kit (LF-D100)
- Various Fuse Tap Sets (Medium, Small, Mini, Micro)
- Prying Tool
- Circuit Tester
Installation Precautions:
- Pay attention to the installation locations of the fuses included in the hardwire kit and the vehicle's fuses.
- Connect the red wire to the vehicle's ACC power source.
- Connect the yellow wire to the BAT power source (constant power).
- Connect the black wire to a metal location on the vehicle (ground).
- Ensure all connections are securely fastened to prevent loosening due to vibrations and bumps.
- Conceal cables neatly within the vehicle to maintain interior tidiness and avoid interference with driving.
- Before connecting the power, ensure that the vehicle's battery is disconnected to prevent accidental short circuits.
- After completing the installation, test all functions of the dashcam, including recording and parking monitoring, to ensure everything is working properly.
Wiring Diagram:

Image: Wiring diagram for the Diamond Lark Dash Cam Hardwire Kit. The yellow wire connects to constant battery power (BAT+), the red wire to accessory power (ACC), and the black wire to a ground point (GND).
Fuse Tap Installation:
The kit includes various fuse tap sizes to match your vehicle's fuse box. Select the appropriate fuse tap for your vehicle.
- Identify an appropriate fuse slot in your vehicle's fuse box for both constant power (BAT) and accessory power (ACC). Use the included circuit tester to identify these.
- Insert the original automotive fuse into the bottom slot of the fuse tap.
- Insert the provided hardwire kit fuse into the top slot of the fuse tap. Ensure both fuses are of the correct amperage.
- Plug the fuse tap into the identified fuse slot in your vehicle's fuse box.

Image: Various fuse tap sets (Medium, Small, Mini, Micro) and their proper fuse insertion. The hardwire kit fuse goes into the top slot, and the automotive fuse into the bottom slot.
General Installation Steps:
- Locate your vehicle's fuse box. This is typically under the dashboard, in the glove compartment, or in the engine bay.
- Connect the yellow wire (BAT+) to a constant power fuse using the appropriate fuse tap.
- Connect the red wire (ACC) to an accessory power fuse using the appropriate fuse tap. This fuse should only be active when the ignition is on.
- Connect the black wire (GND) to a bare metal bolt or screw on the vehicle's chassis to ensure a proper ground connection.
- Route the Type-C USB cable to your dash camera, concealing it along the vehicle's trim or headliner for a clean installation.
- Plug the Type-C connector into your dash camera.
- Reconnect your vehicle's battery and test the dash camera's functionality.

Image: Visual guide for hardwire kit installation in a car, demonstrating connections to the fuse box and a grounding point.

Image: Extended power cord lengths of the hardwire kit, showing the 11.5 feet (3.5m) Type-C cable and 3.2 feet (1m) power input cable for flexible routing.
Operating Instructions
Automatic Power On/Off:
Once installed, the hardwire kit will automatically power your dash camera on when the vehicle's ignition is turned on and power it off when the ignition is turned off.
24-Hour Parking Surveillance:
To utilize the 24-hour parking surveillance feature, ensure your dash camera has a built-in parking monitoring function. The hardwire kit provides continuous power to the dash camera even when the vehicle is off, allowing the dash camera's parking mode to activate and record events.
Intelligent Low-Voltage Protection:
The hardwire kit is equipped with an intelligent low-voltage protection device. If your vehicle's battery voltage drops below a critical level (e.g., to prevent battery drain), the kit will automatically cut off power to the dash camera. This protects your vehicle's battery from being completely discharged, ensuring you can start your car.
Maintenance
The Diamond Lark Dash Cam Hardwire Kit LF-D100 requires minimal maintenance. It is recommended to:
- Periodically check all wire connections to ensure they remain secure and free from corrosion.
- Inspect the cables for any signs of wear or damage.
- Ensure the fuse taps are firmly seated in the fuse box.
Troubleshooting
Dash Cam Not Powering On:
- Check Connections: Ensure all three wires (yellow BAT+, red ACC, black GND) are securely connected.
- Verify Fuses: Check both the original automotive fuse and the hardwire kit fuse in the fuse tap. Replace if blown.
- Test Power Sources: Use the included circuit tester to confirm that the selected fuse slots for BAT+ and ACC are providing power.
- Ground Connection: Ensure the black ground wire is connected to a clean, unpainted metal surface on the vehicle chassis.
Dash Cam Shuts Off Unexpectedly (Parking Mode):
- Low-Voltage Protection: The kit's intelligent low-voltage protection may have activated to prevent vehicle battery drain. This is normal behavior if the battery voltage drops too low.
- Vehicle Battery Health: If this occurs frequently, your vehicle's battery may be weak or old and require inspection or replacement.
Dash Cam Does Not Enter Parking Mode:
- Dash Cam Feature: Confirm that your dash camera itself has a parking monitoring function and that it is enabled in the dash cam's settings. The hardwire kit provides power, but the dash cam controls the parking mode logic.
- ACC Connection: Ensure the red ACC wire is correctly connected to a fuse that powers off with the ignition. If it's connected to a constant power source, the dash cam may not detect the ignition turning off.
Specifications

Image: Detailed product specifications for the Diamond Lark Dash Cam Hardwire Kit LF-D100.
| Feature | Detail |
|---|---|
| Model Name | LF-D100 Hardwire Kit |
| Input Voltage | DC 12V-24V (Vehicle Power Supply) |
| Output Voltage | 5V |
| Output Current | 2.5A |
| Core Wires | BAT(+) - ACC(+) - GND(-) |
| Total Length | 14.7FT / 4.5M |
| Operating Temperature Range | -20°C to 70°C (-4°F to 158°F) |
| Interface Type | Type-C USB |
| Item Weight | 4.1 Ounces |
| Item Dimensions (D x W x H) | 6.3"D x 3.9"W x 2"H |
Warranty Information
The Diamond Lark Dash Cam Hardwire Kit LF-D100 comes with a 1-year free replacement warranty. This warranty covers manufacturing defects and ensures a replacement if quality issues arise.
Customer Support
For any questions or technical assistance regarding the hardwire kit, please contact Diamond Lark customer service. We provide 24/7 online customer service to assist you.
If the product does not function as expected, please reach out to us for satisfactory after-sales service and support.