RANSOTO Xenon HID Ballast Control Unit Kit with D4S Bulb for Lexus/Toyota — Replaces 85967-52020, Includes Igniter

RANSOTO's Xenon HID ballast control unit kit replaces factory ballast and igniter components and includes a D4S bulb to restore reliable HID startup and stable beam output.

When a vehicle's HID lights flicker, fail to ignite, or display inconsistent brightness, the culprit is often a worn ballast or a failing igniter. This complete kit from RANSOTO bundles a replacement ballast, a matched igniter and a D4S bulb so you swap the main electrical components together for a straightforward repair. The assembly is designed to match OEM electrical interfaces and fits many Lexus and Toyota models from the mid-2000s through the early 2010s, simplifying sourcing and installation.

Will this ballast kit fit my Lexus or Toyota?

The kit covers a wide range of Lexus and Toyota vehicles that originally used D4S HID systems. Rather than relying on a single part number, RANSOTO lists many compatible original numbers to help you confirm fitment against your vehicle's factory parts.

• Common fits: Lexus IS250/IS350, GS300/GS350, RX350/450h, ES350, LS460, GX460, SC430.
• Toyota models included: Prius, Avalon, Solara, Venza (model years shown in the compatibility list).
• Replaces numerous OEM part numbers such as 85967-52020, DDLT003, KDLT003 and related codes.

How does the ballast and igniter work together?

The ballast provides the high voltage pulse needed to ignite the xenon gas inside the HID bulb and then stabilizes current while the lamp runs. The paired igniter initiates the discharge, and the control unit maintains correct electrical behavior so the bulb lights consistently and stays lit without flicker.

• High-voltage start pulse to ignite the D4S xenon arc.
• Current regulation to prevent flicker and protect the bulb.
• OEM-style connectors for plug-and-play replacement.

What comes in the box and what should I expect from install?

The package contains a single ballast control unit, a corresponding igniter module and one D4S bulb, giving you the main parts needed to repair an HID lamp circuit. Installation typically requires basic hand tools and a secure mounting point; professional installation is recommended if you are not comfortable with automotive electrical work.

• Included: 1x ballast control unit, 1x igniter, 1x D4S xenon bulb.
• Installation: unplug battery, remove old ballast/igniter, connect new components to original connectors, test before reassembly.
• Aftercare: avoid touching bulb glass directly and ensure secure mounting to prevent vibration issues.

Does the kit come with warranty support?

RANSOTO provides a limited six-month warranty that covers manufacturing defects and premature failures under normal use. If you encounter an issue, contact RANSOTO customer service for troubleshooting and warranty help; they commit to responding within 24 hours.

• Warranty duration: six months from purchase.
• Support: customer inquiries answered within 24 hours.
• Keep proof of purchase and note vehicle/part numbers when requesting service.

Who is this for: This RANSOTO ballast and igniter kit is aimed at vehicle owners, independent mechanics and repair shops replacing failed HID lighting components on compatible Lexus and Toyota models. Choose this kit if you need an OEM‑style electrical replacement that includes the ballast, igniter and a matched D4S bulb to reduce troubleshooting time and avoid sourcing parts separately.