1. Product Overview
The ELH Projector Headlight Assembly is designed as a direct fit replacement for the 2006-2011 Cadillac DTS models equipped with factory HID/Xenon headlights. This assembly provides an OE-style appearance and balanced light output without glare, ensuring clear visibility. It is built with a fully sealed housing and a UV-resistant lens for durability and long-term performance.

Figure 1.1: ELH Projector Headlight Assembly, showing the main unit, included HID bulb, and ballast.
Key Features:
- True OE Appearance: Matches the shape and style of the original headlight for a clean, stock look.
- Direct Fit Replacement: Bolts into place using factory mounting points, requiring no custom wiring.
- Balanced Light Output: Features OEM-style projectors for even, usable light without glare.
- Ready for Daily Use: Fully sealed housing and UV-resistant lens built to handle everyday wear.
- Clear Lenses: Provides clear light and visibility without dark tint or colored LEDs.
2. Setup and Installation
This headlight assembly is designed for a direct bolt-on installation, making it a 'Plug & Play' solution. No additional wiring modifications are typically required, as it utilizes existing factory mounting points and connections. Ensure all factory Xenon HID components are reused.
2.1 Pre-Installed Bulbs
The assembly comes with pre-installed bulbs, eliminating the need to purchase extra bulbs and wiring harnesses. The included bulbs are:
- Side Marker: W5W
- Turn Signal: 4157NA
- High / Low Beam: HID Bulbs (DIS)

Figure 2.1: Diagram illustrating the locations of the pre-installed Side Marker, Turn Signal, and High/Low Beam HID bulbs within the headlight assembly.
2.2 Wiring and Connection
The design facilitates a straightforward 'Plug & Play' connection. Simply connect the assembly to the vehicle's existing wiring harness. Ensure all connections are secure before operation.

Figure 2.2: Visual guide to the 'Plug & Play' wiring connections, including the main connector, side marker, turn signal, and high/low beam connections.

Figure 2.3: Illustration demonstrating the direct bolt-on nature of the headlight assembly, emphasizing that no wiring modifications are needed for installation.
3. Operating Instructions
Once installed, the ELH Projector Headlight Assembly operates in conjunction with your vehicle's existing headlight controls. The projector design ensures a focused and balanced light output for optimal visibility.
3.1 Headlight Functions
The assembly supports the following lighting functions:
- Low Beam HID Bulbs: Provides standard illumination for general driving conditions.
- High Beam HID Bulbs: Offers increased illumination for enhanced visibility on dark roads.
- Turn Signal: Amber light for indicating turns.
- Side Marker: Provides additional visibility from the side of the vehicle.

Figure 3.1: Display of the headlight's functional modes, including Low Beam, High Beam, Turn Signal, and Side Marker illumination.

Figure 3.2: Illustration of the even light output provided by the OEM-style projector beam, designed to improve visibility without glare or light scatter.
4. Maintenance
Proper maintenance ensures the longevity and optimal performance of your ELH Projector Headlight Assembly. Regular cleaning and inspection are recommended.
4.1 UV Coating Protection
The headlight lens features a UV coating designed to prevent yellowing and cracking over time, common issues with older headlight assemblies. This coating helps maintain clarity and light output.

Figure 4.1: Comparison showing a headlight before and after the benefits of UV coating, highlighting its role in preventing yellowing and cracking for sustained clarity.

Figure 4.2: Visual representation of the OEM-style clarity provided by the lens, demonstrating the absence of light flash or scattering for optimal visibility.
4.2 Waterproof Design
The assembly is designed to be waterproof, protecting internal components from moisture and environmental elements. This feature contributes to its readiness for daily use in various weather conditions.

Figure 4.3: Image depicting the waterproof nature of the headlight assembly, with water splashing over it, indicating its resistance to moisture.

Figure 4.4: Visual illustrating the sealed housing and UV-coated lens, ensuring reliable performance in snowy, rainy, and foggy conditions.
5. Troubleshooting
This section provides general guidance for common issues. For complex problems, professional assistance is recommended.
5.1 Common Issues and Solutions
- Headlight Not Functioning:
- Check all electrical connections to ensure they are secure and properly seated.
- Verify the vehicle's fuses related to the headlight system.
- Inspect the bulb for damage or burnout.
- Dim or Flickering Light:
- Ensure the vehicle's battery and charging system are functioning correctly.
- Check for loose or corroded wiring connections.
- If using HID, ensure the ballast is functioning correctly.
- Moisture Inside Headlight:
- While the unit is sealed, extreme temperature changes can cause condensation. This usually dissipates.
- If persistent, inspect the housing for cracks or damage that might compromise the seal.
6. Specifications
Detailed specifications for the ELH Projector Headlight Assembly.
| Attribute | Detail |
|---|---|
| Brand | ELH |
| Model | ELH-034 (Compatible with 2006 - 2011 Cadillac DTS) |
| ASIN | B0FJLS1211 |
| Color | Chrome Housing Amber Reflector |
| Specific Uses For Product | Head Lights |
| Vehicle Service Type | 2006 - 2011 Cadillac DTS Factory HID / Xenon Headlight Models 4 - Door Sedan |
| Special Feature | Waterproof |
| Assembly Required | No |
| Automotive Fit Type | Vehicle Specific Fit |
| Manufacturer | ELH |
| Item Weight | 16.27 pounds |
| Package Dimensions | 22.44 x 18.11 x 16.14 inches |
| Exterior | Polished |
| Date First Available | July 23, 2025 |
7. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact ELH customer service directly. Keep your purchase receipt for warranty claims.
ELH Customer Service: Please visit the official ELH website or contact your retailer for support contact details.





