Bixenon HID Adapter H4 Pair Diode Dynamics

Bixenon HID Adapter H4 Pair Diode Dynamics

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When installing HIDs in a dual-filament application, the original factory power signal must be separated into main power for the ballast, and a high beam signal to trigger the bixenon bulb, switching from low beam to high beam. Normally, this is accomplished with a bixenon relay, which connects to the battery and runs to each headlight. However, these can be unreliable as the relay fails over time, and cumbersome to install.

These bixenon adapters are a modern, reliable alternative to the traditional wire harness relay. They do not require extra wiring- it's just an adapter! Plug one side into your factory bulb socket, then plug the other side into your HID ballast and bixenon HID bulb. The adapter will power the ballast, and quickly change from low to high beam when you flip the switch in your vehicle.

These adapters are fully encapsulated for maximum reliability, and are compatible with all 35W CAN-BUS HID ballasts. Select the size based on the input power signal - H4/9003, H13, 9004, or 9007. The output wires are standard 9006 power to plug into the ballast, and a rectangular 2-pin standard high beam solenoid connector.

Included in your order is two adapters, one for each side of your HID kit. Please make sure to select the correct option for bulb size, corresponding to your headlight bulb size. All items are covered by Diode Dynamics 30 days satisfaction guarantee as well as Diode Dynamics 3-year limited warranty.
What's Included

  • Bixenon Adapter H4 Pair
  • Quantity: Two (2)
  • Warranty: 3 year warranty
  • 100 percent Satisfaction Guarantee


  • Measured Lumens: 3200 (per bulb)
  • Operating Voltage: 9-16V
  • Operating Temperature: -40C to 85C (-40F to 185F)
  • Connector(s): OEM-Size Plug and Play

SKU: DD4040