How to Install LED Demon Eyes for Headlights

Aug 19, 2025

1. Introduction to Demon Eyes

Demon eyes (also called devil eyes) are LED lighting modules installed inside headlights, typically positioned behind projector lenses. They emit vibrant colors like red, blue, or purple, giving vehicles a distinctive and aggressive appearance.

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Key Features:

Custom Styling – Creates a bold, eye-catching look for car enthusiasts.

Projector Compatibility – Works oem with projector headlights for optimal light diffusion.

Functional Benefits – Enhances visibility and can be paired with RGB controllers for dynamic effects.

2. Why Demon Eyes Are Popular

A favorite among car show enthusiasts and off-road vehicle owners (e.g., Jeep builds).

Often combined with LED auxiliary lights for improved nighttime or off-road visibility.

RGB-capable models allow for customizable colors via smartphone apps.

3. Can You Install Demon Eyes Yourself?

Yes! With basic automotive skills, DIY installation is achievable.

Skill Level Required:

Experience with wiring (e.g., installing fog lights or dash cams).

Time Investment: 2–4 hours (most time spent opening and resealing headlights).

Cost Savings:

100–100–

300 compared to professional installation.

4. Tools and Materials Needed

Essential Tools:

Screwdrivers & trim tools (for removing headlight assemblies).

Heat gun or oven (to soften headlight sealant).

Soldering iron or wire connectors (for secure electrical connections).

Electrical tape & zip ties (for wire management).

Required Components:

Demon eyes LED kit (includes modules, wiring, and sometimes a controller).

Relay harness (optional, for stable power from the battery).

Optional Add-ons:

LED auxiliary lights (for extra illumination).

RGB controller (for color customization via Bluetooth).

5. Pre-Installation Preparation

Disconnect the battery to prevent electrical hazards.

Protect the car's paint with fender covers.

Check headlight sealing type (permanent vs. reusable butyl sealant).

6. Step-by-Step Installation Guide

Step 1: Remove the Headlight Assembly

Unbolt the headlight and disconnect wiring harnesses.

Place it on a clean, soft surface.

Step 2: Open the Headlight Housing

Use a heat gun or oven (~200°F/95°C for 10–15 minutes) to soften the sealant.

Carefully pry open the housing without damaging clips or lenses.

Step 3: Install the Demon Eyes

Position the LED module behind the projector lens.

Secure it with adhesive or included brackets.

Step 4: Wire the System

Route wires through existing grommets (seal afterward).

Connect to parking lights, DRLs, or a dedicated switch.

Step 5: Reseal and Reinstall

Apply fresh sealant or reuse the original butyl strip.

Reassemble the headlight and reinstall it on the vehicle.

7. Post-Installation Tips

Test before final sealing to ensure proper alignment and function.

Secure wiring neatly with zip ties to avoid heat exposure.

Avoid cutting factory wires-use T-taps or plug-and-play connectors.

8. Advanced Customization Ideas

Pair with LED light bars for off-road or aesthetic upgrades.

Use an RGB controller for dynamic color-changing effects.

9. Conclusion

Installing demon eyes is a rewarding DIY project that enhances your vehicle's style and visibility. With the right tools and patience, you can achieve professional results at home.


Recommended Reading:

How Long Do LED Lights Last?

Top 10 LED Work Light Brands

Essential Guide to Off-Road Lighting

Contact Us:

Phone: 0086-15818025687

Email: service02@xrlledlight.com

Address: Lijia Industry, Danzao Town, Foshan, Guangdong, China

check here to know more:https://www.xrlledlight.com/off-road-lights/demon-light-devil-eye-light/led-demon-eyes-headlight-projector-lighting.html

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