Combo Kit: Denso DDLT-002 OEM D2R/D2S HID Ballasts & Philips HID Bulbs Bundle Kit | Pack of 2

The Denso DDLT-002 OEM D2R/D2S HID Ballast and Philips HID Bulb Bundle Kit is the ultimate factory-grade restoration package for vehicles with failing or dimmed high-intensity discharge headlights. Manufactured in Japan by Denso and paired with industry-standard 4300K Philips OEM Xenon bulbs (85122 for D2S projectors or 85126 for D2R reflectors), this complete bundle delivers original power regulation and beam clarity. Over time, aged HID ballasts can cause flickering, delayed ignition, or uneven color output, while aging bulbs shift color and lose luminance. By replacing both control units and lamps simultaneously, this plug-and-play combo kit eliminates electrical mismatch, restores road visibility, and ensures factory-level reliability backed directly by HID Concept.com.

Key Features & Benefits

• What's Included in the Kit: Complete package includes 2 Genuine Denso Koito DDLT-002 HID ballasts, 2 power wire harnesses, and your choice of either 2 Philips D2S HID Xenon bulbs or 2 Philips D2R HID Xenon bulbs.

• 100% Genuine OEM Components: Features authentic Japanese-made Denso DDLT-002 (Koito) ballasts and original Philips D2 HID bulbs—the exact standard installed on factory assembly lines.

• Complete Headlight System Overhaul: Replaces both driver and passenger side ballasts and bulbs at once, preventing premature failure caused by mixing aged components with new ones.
• Factory Standard 4300K Output: Emits an optimal ~3200-lumen daylight-white illumination that maximizes road contrast without blinding oncoming traffic.
• Direct Plug-and-Play Fitment: Engineered with original factory mounting footprints and harness connectors for seamless installation with no wire cutting, splicing, or vehicle recoding needed.
• Weatherproof & Vibration-Resistant: Built with heavy-duty aluminum ballast housings designed to withstand high engine bay temperatures, moisture, and road shock.

Vehicle Compatibility Section

This OEM Denso/Koito ballast corresponds directly to Denso part number DDLT-002 (DDLT002). Compatibility applies strictly to vehicles equipped with factory-installed HID xenon headlights:

Part Number References

Denso: DDLT002
Toyota: 85967-08010, 85967-30050, 85967-50020, 85967-51010
Lexus: 04002-85948, 85967-0E010, 85967-53010 (regional EPC variant mapping family)

Vehicle Application List (Factory HID Trims Only)

2000-2003 Lexus ES300 (Fits vehicles with factory HID headlights)
2004-2006 Lexus ES330 (Fits vehicles with factory HID headlights)
1998-2004 Lexus GS300 (Fits vehicles with factory HID headlights)
2001-2005 Lexus GS430 (Fits vehicles with factory HID headlights)
2001-2005 Lexus IS300 (Fits vehicles with factory HID headlights)
1998-2000 Lexus LS400 (Fits vehicles with factory HID headlights)
2001-2006 Lexus LS430 (Fits vehicles with factory HID headlights)
2001-2003 Lexus RX300 (Fits vehicles with factory HID headlights)
2004-2006 Lexus RX330 (Fits vehicles with factory HID headlights)
2007-2009 Lexus RX350 (Fits vehicles with factory HID headlights)
2006-2008 Lexus RX400h (Fits vehicles with factory HID headlights)
2002-2005 Lexus SC430 (Fits vehicles with factory HID headlights)
2005-2007 Toyota Avalon (Fits vehicles with factory HID headlights)
2004-2005 Toyota Prius (Fits vehicles with factory HID headlights)
2004-2010 Toyota Sienna (Fits vehicles with factory HID headlights)

Important Fitment Notice: Designed strictly for factory-equipped HID systems. This unit will not fit or convert halogen-equipped vehicle trims or aftermarket LED setups. To confirm accuracy, HID Concept recommends checking the part number printed on your existing factory ballast before purchasing.

Performance & Visibility Section

A healthy HID control module and fresh lamps are vital for maintaining arc stability and maximum luminance in D2 xenon systems. Aging ballasts can experience internal power drop-offs, while old bulbs shift toward a dim or pinkish hue, resulting in delayed light ignition, unexpected flickering while driving, or total headlight blackout. Replacing your worn units with this Genuine Denso DDLT-002 ballast and Philips bulb combo re-establishes consistent power delivery, helping your D2S or D2R system reach its full design luminance for clear, reliable nighttime road visibility.

OEM Quality & Reliability Section

Sourcing replacement headlight control modules and bulbs through HID Concept.com provides vehicle owners with an authentic original equipment solution for repairing non-working headlights. Manufactured to match stock electrical specifications and factory mounting footprints, these genuine control modules and Philips lamps carry an estimated service life of 2,000+ hours.

Service Recommendation: Because opposing headlight components accumulate equal operating hours, HID Concept recommends replacing both headlight ballasts and bulbs simultaneously to maintain symmetrical beam color and brightness.

Installation Information

The Genuine Denso DDLT-002 ballast and Philips D2 bulb bundle features a direct plug-and-play layout designed to match the factory mounting locations and plug connectors on compatible vehicles.

To install, ensure the vehicle ignition is OFF and power is disconnected. Access the headlight housing, remove the failed original ballast unit and old bulb, attach the factory harness connector to the new genuine module, seat the new Philips bulb, and secure everything in place using stock mounting hardware.