OSRAM Classic D5S D5A 66541 HID Xenon Headlight Bulbs 35W 4500K | Pack of 2

OSRAM Classic D5S D5A 66541 HID Xenon Headlight Bulbs 35W 4500K | Pack of 2 Premium Philips X-tremeVision Gen2 HID Upgrade | Pack of 2 The OSRAM Classic D5S D5A 66541 HID Xenon Headlight Bulb Pack produces powerful daylight-white illumination, dramatically increasing down-road range and night driving safety. Manufactured by OSRAM, a globally recognized leader in automotive illumination, these authentic Classic Xenarc bulbs feature an upgraded 35W design that delivers an average light output of ~3148 lumens with a crisp 4500K color temperature. Available through HIDConcept.com, this 2-pack offers an OEM-grade plug-and-play performance upgrade complete with a standard PK32d-7 base. Key Features & Benefits Authentic OSRAM Quality: Features genuine OSRAM branding and reliability for dependable, long-lasting performance. Upgraded 35W Performance: Designed as a high-output 35W upgrade to the standard 25W D5S system, delivering increased brightness (~3148 lm average) on the road. 4500K Color Temperature: Produces a clean, natural white beam (~4500K) that improves contrast and visibility during nighttime driving. Standard PK32d-7 Base: Features the PK32d-7 base socket, making it a direct-fit replacement for compatible original equipment applications. Convenient Pack of 2: Supplied as a twin pack, making it easy to replace both headlight bulbs simultaneously for a consistent appearance and balanced beam pattern. Compatible Manufacturer Part Number Audi: 8W0941235 GM AC Delco Chevrolet/GMC: 13594523 Hyundai Kia: 18647-25012 (Note: 2017-2018 Hyundai Elantra has both D5S and D1S low-beam headlights) Vehicle Compatibility Section The OSRAM Classic D5S D5A 66541 HID Xenon set is engineered specifically for vehicles factory-equipped with D5S or D5A HID headlamp applications. Alfa Romeo 4C: 2015 - 2018 (Check! D3S & D5S used) Giulia: 2017 - 2018 (Check! D2S & D5S used) Audi A3: 2017 - 2018 A3 Quattro: 2017 - 2018 A3 Sportback e-Tron: 2017 - 2018 A4: 2017 - 2018 A4 Quattro: 2017 - 2018 A4 Allroad: 2017 - 2018 A6: 2016 - 2018 A6 Quattro: 2016 - 2018 Q3: 2016 - 2018 Q3 Quattro: 2016 - 2018 Q7: 2017 - 2018 Chevrolet Equinox: 2016-2020 Silverado 1500: 2016 - 2018 Silverado 2500 HD: 2016-2020 Silverado 3500 HD: 2016-2020 GMC Sierra 1500: 2016 - 2019 Sierra 2500 HD: 2016 - 2020 Sierra 3500 HD: 2016 - 2020 Terrain: 2018-2020 Hyundai Elantra: 2017 - 2018 Jeep Renegade: 2017 - 2018 Kia Forte: 2017 - 2018 Forte5: 2017 - 2018 Popular Vehicle Applications: Widely used as an original equipment replacement and upgraded solution across modern European and American vehicle platforms, including select Audi, Chevrolet (Silverado), GMC (Sierra), Hyundai, and Kia models equipped with factory 12V D5S systems. System Compatibility Note: The OSRAM Classic 66541 is designed as a 35W upgraded variant of the original 25W D5S bulb. Ensure your vehicle’s factory ballast and wiring system support 35W power delivery for optimal performance and proper lighting operation. Performance & Visibility Section Factory 25W D5S HID bulbs typically produce limited lumen output (~2000 lumens) to comply with specific international regulatory thresholds without requiring headlight washers or auto-levelers. Upgrading to the OSRAM D5A 66541 35W HID kit replaces standard output with an increased average of ~3148 lumens of crisp 4500K illumination. By utilizing precisely aligned arc capsules, drivers benefit from wider beam spread, sharper road boundary definition, and improved sign reflectivity without blinding oncoming motorists. OEM Quality & Reliability Section OSRAM is an industry authority in automotive illumination, trusted by major vehicle manufacturers worldwide. Unlike non-branded or low-quality generic replacement HID bulbs that suffer from premature color shift and capsule failure, the OSRAM 66541 series delivers verified output stability, strict color tolerance, and long-term operating life. Installation Information Installing the OSRAM Classic D5S D5A 66541 HID Xenon Bulbs is a direct plug-and-play process. Begin by switching off the ignition and ensuring the headlight assembly is completely powered down. Access the rear of the headlight housing, disconnect the factory 12V electrical harness from the base of the original D5S/D5A unit, unlatch the retaining spring clip, and remove the bulb. Insert the new OSRAM D5A 66541 unit into the housing, taking care not to touch the clear glass capsule with bare hands, align the PK32d-7 base tabs, and lock the retaining clip into place. Reconnect the vehicle power harness directly to the base socket and test headlight activation to verify proper operation and alignment. Technical Specs Size D5S Base PK32d-7 Technology HID Xenon Color temp. (K) Up to 4500K Lumens (lm) 3148lm ±15% Voltage 12V Wattage 35W Manufacturer part number (MPN) 66541