Exterior Components Lights and Components

Diode Dynamics

BIXENON ADAPTER H4 (PAIR)

$42.00

SKU: D00H DD4040

In Stock
In Stock
Ships by Jun 13
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Diode Dynamics DD4040 is a pair of bixenon HID adapters designed for dual-filament applications. These adapters provide a reliable alternative to traditional bixenon relays, eliminating the need for complex wiring. They directly connect between your factory bulb socket, HID ballast, and bixenon HID bulb, powering the ballast and facilitating the switch from low to high beam.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDiode Dynamics
Part NumberD00H DD4040

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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