HID Accessories
- Merchant Reviews -
HID Accessories & Replacement Parts
An HID system is more than a bulb, and the supporting parts are what keep it running — or what you reach for when something needs fixing or fine-tuning. Whether a ballast has failed, your dash is throwing an error, or you need the right harness for a clean install, this is where you’ll find the piece that makes an HID setup work right. We’ve specialized in xenon systems since 2004, so we stock the parts that actually matter.
The parts that keep xenon running
- Ballasts power the bulb, stepping 12V up to strike and regulate the xenon arc. If one side goes dim, flickers, or goes dark while the bulb is fine, a replacement ballast is usually the fix.
- Igniters are the striking component for D2 and D4 systems (D1 and D3 build the igniter into the ballast). Matching the right igniter type is essential.
- Relay & anti-flicker harnesses feed the ballasts steady, direct power — the cure for flicker, warm-up problems, or dropouts on vehicles with daytime running lights or sensitive electronics.
- Decoders / warning cancellers stop the “bulb out” dashboard error on CANbus vehicles.
Not sure what you need?
If a light is misbehaving, the symptom usually points to the part: a dark side with a good bulb means a ballast; flicker or errors means a harness or decoder. Match parts to your existing kit’s size and type, and reach out if you want a hand diagnosing it. Everything ships free over $75 with our warranty.
Frequently asked questions
One of my HID lights went out but the bulb is fine. What is wrong?
If the bulb tests good but one side is dark, the ballast is the usual culprit. The ballast strikes and regulates the xenon arc, and when it fails that side stops lighting. A matching replacement ballast typically restores it.
What is the difference between a D1/D3 and D2/D4 igniter setup?
D1 and D3 bulbs have the igniter built into the ballast assembly, while D2 and D4 use a separate igniter component. They are not interchangeable, so match the igniter type to your specific bulb and ballast system.
Do I need an anti-flicker or relay harness?
You do if your HID flickers, is slow to light, or triggers a dashboard warning, which happens on vehicles with daytime running lights or current-monitoring computers. The harness feeds the ballasts steady, direct power to eliminate those issues.
What cancels the HID bulb-out warning on my dash?
A decoder or warning canceller. CANbus vehicles monitor bulb current and flag HID as a fault; the decoder simulates a normal load so the warning clears. Match it to your bulb size and system.
How do I choose the right ballast?
Match it to your bulb type (D-series vs. conversion), your original wattage (commonly 35W), and your igniter setup. If you are replacing a failed unit, replicate the specs of the working side or the original kit.