1. Clean the headlights

2. Sanding

Use sandpaper of varying thickness (such as 600, 1000 and 2000 mesh) to wash the lights from rough to fine to remove the oxide coating and scratches.

3. Polishing

4. Use UV protection

Apply at least three layers of UV protection to prevent the bulbs from re-oxidizing.

5. Initial adjustment
- Apply a mixture of toothpaste and baking soda to the bulbs, then rinse with water.
- Use a mixture of baking soda and white vinegar, apply to the bulbs, leave for a few minutes and then clean.
- Spray the bulbs with Coke (which contains phosphoric acid to remove rust and stains), let it sit for a minute and then dry it with a microfiber cloth.
- After using dish soap, wash the

6. Replace the bulb

7. Check the electrical connections

8. Adjust the bulbs