How often should I replace my HID bulbs?

HID bulbs lose brightness over time, so it's generally recommended to replace them every 2-3 years, or when you notice a significant decrease in light output. Replacing them in pairs ensures consistent color and brightness.

Do these bulbs require any modifications to install?

No, these Diode Dynamics HID bulbs are designed as direct replacements for your factory D4S bulbs. No modifications are needed for installation; simply remove the old bulbs and plug in the new ones.

Are these bulbs street legal?

Yes, these bulbs meet DOT, SAE, and ECE standards for arc position and size. This means they are compliant with regulations for use on public roads.

Diode Dynamics

Diode Dynamics HID Bulb D4S 4300K (Pair)

Name: Diode Dynamics HID Bulb D4S 4300K (Pair)
Brand: Diode Dynamics
Price: 102.35 USD
Availability: InStock

$102.35

Direct replacement HID bulbs from Diode Dynamics. Restores light output and color.

Key Features

Direct replacement — fits right in place of your factory D4S HID bulbs
4300K color temperature — provides a natural white light output, like factory HIDs
True colors — no green or purple tint
Ceramic base — protects against heat

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Will this fit your vehicle?

Compatible with 158 vehicles

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Product Details

If your vehicle is equipped with HIDs these are a perfect direct replacement. Since HID bulbs lose brightness after just a few months of use these will provide a nice increase in output.