RANSOTO Xenon HID Headlight Ballast for D2S 35W — W3T19371 Direct Replacement, IP68 Waterproof

RANSOTO W3T19371 is a direct-replacement Xenon HID ballast with built-in igniter designed to restore reliable D2S 35W headlight operation for specific Acura, Honda, Mazda and Mitsubishi models.

If your HID lamp flickers, won’t start, or changes color, a failing ballast (or igniter) is often the cause. This RANSOTO unit supplies the precise startup voltage and stable running current required by D2S 35W bulbs, comes rated IP68 for moisture resistance, and matches multiple OEM part numbers so you can swap it in without modifying factory wiring.

How does this ballast revive a faulty HID headlight?

The ballast creates the high-voltage pulse needed to ignite the Xenon gas in the D2S bulb, then regulates current to keep the arc stable. Replacing a worn or damaged ballast eliminates common symptoms like intermittent light, slow warm-up, or color shifts.

• Built-in igniter and driver circuitry for reliable startup
• Matches D2S 35W electrical requirements: 12V DC input, 3200 lumen output
• IP68 waterproofing protects electronics from moisture and road debris

Will this fit my car and replace the original part?

This RANSOTO ballast is listed to directly replace several factory numbers and fits many Acura, Honda, Mazda and Mitsubishi vehicles across model years shown. Confirm compatibility by comparing OEM part numbers or your vehicle’s existing ballast label before purchase.

• Replaces W3T19371, W3T16271, W3T15671 and multiple OEM numbers
• Compatible with Acura TL/TSX/ZDX/MDX/RDX/ILX and many Honda, Mazda, Mitsubishi models
• Designed as a plug-and-play swap for stock D2S systems—no cutting or splicing

What are the technical specs and durability features?

This unit runs D2S bulbs at 35 watts and ~3200 lumens with a 6000K white color temperature. It’s built to withstand wide temperature ranges and sealed to IP68 standards to extend service life under typical driving conditions.

• Bulb size: D2S; Power: 35W; Voltage: DC 12V; Lumen: 3200LM
• Color temperature: 6000K white; operational range -40℃ to +80℃
• Waterproof rating IP68 and solid-state electronics for vibration resistance

How easy is installation and what support is available?

Installation is straightforward when the ballast matches the factory connector and bulb type—typically a simple swap behind the headlamp assembly. RANSOTO offers after-sales support and warranty assistance if you encounter fitment or quality issues.

• Plug-and-play replacement for compatible D2S systems—no external converters needed
• Includes built-in igniter to simplify wiring and reduce installation steps
• Manufacturer warranty and customer support for troubleshooting and returns

Who is this for: This RANSOTO W3T19371 ballast is intended for vehicle owners, mechanics and automotive DIYers who need a direct, reliable replacement for failing D2S 35W HID ballasts on compatible Acura, Honda, Mazda and Mitsubishi models. It suits anyone seeking plug-and-play compatibility, improved ignition reliability, and a weatherproof unit rated to endure daily driving conditions.