GTMOTO D4S HID Bulbs for Lexus ES350 (2007–2015) 6000K 35W — Plug-and-Play Xenon Low Beam, OEM D4S-C1 Fit

GTMOTO D4S HID bulbs are a plug-and-play 6000K, 35W xenon low-beam replacement designed to brighten and modernize 2007–2015 Lexus ES350 headlight projectors.

These D4S xenon gas-discharge bulbs restore high-intensity white light to Lexus ES350 bi-xenon projectors without altering factory housings. Built from anti-UV laser-cut quartz with stainless brackets and ceramic insulation, the pair offers a cooler 6000K color temperature and roughly 1.5× perceptible brightness versus older D4S units, while keeping OEM D4S-C1 fitment and a fast plug-in installation process.

Will these bulbs fit my 2007–2015 Lexus ES350 low beams?

Yes, they’re made to match OEM D4S-C1 low-beam sockets used in 2007–2015 Lexus ES350 projector headlamps and many bi-xenon setups. However, they are not compatible with halogen systems or any single high-beam halogen sockets. Double-check your vehicle uses replaceable D4S xenon capsules before ordering.

• OEM D4S-C1 socket compatibility for ES350 low-beam projectors
• Not compatible with halogen bulbs (H7/H11/9005/etc.)
• Works with external HID ballast (sold separately if required)

How much brighter and whiter will my headlights look?

These bulbs produce a cool daylight-white 6000K tint that appears noticeably whiter than factory 4300K bulbs. The kit advertises around 1.5× visible brightness improvement, improving contrast and perceived range under normal driving conditions without modifying housings.

• 6000K daylight-white color for clearer road sighting
• Approximately 1.5× perceptible brightness increase
• Maintains projector cutoff when installed correctly

What are the build quality and lifespan features?

GTMOTO D4S bulbs use laser-cut anti-UV quartz glass, ceramic insulating sleeves, and stainless mounting brackets to resist heat and vibration. The construction reduces yellowing and premature failure, providing reliable illumination when paired with a quality ballast and proper handling.

• Anti-UV quartz glass resists discoloration
• Ceramic insulation for thermal stability
• Stainless metal bracket for secure mounting in projector housings

How difficult is installation and what else do I need?

Installation is designed to be a straightforward, roughly 10-minute process: remove the old D4S capsule, insert the GTMOTO D4S bulb and reconnect the wiring. You may need an external ballast or to verify your existing ballast is compatible; no cutting or housing modification should be required for proper D4S applications.

• Plug-and-play D4S-C1 fitment for quick swap
• Requires compatible HID ballast for operation (confirm vehicle setup)
• Typical installation time ~10 minutes per side

Who is this for: GTMOTO D4S bulbs are for Lexus ES350 owners (model years 2007–2015) who want a crisp, daylight-white low beam without replacing headlamp housings. Ideal if your factory xenon bulbs are dim, yellowing, or nearing end-of-life—do not buy if your vehicle uses halogen bulbs or non-D4S sockets.