OSRAM XENARC 66340 D3S - 35W Xenon Headlight Bulb (PK32d-5, 4300K, 3200lm)
The OSRAM XENARC 66340 D3S is a 35W xenon high-intensity discharge ( HID ) lamp, ECE approved ( D3S ), and designed as an original equipment manufacturer (OEM) replacement part for automotive headlights. It offers a typical luminous flux of 3200 lm and a color temperature of approximately 4300 K , providing neutral white light, long range, and excellent color rendering for night driving. It features a PK32d-5 base with an integrated igniter , allowing it to operate with a D3S-compatible electronic ballast (lamp voltage 42 V; system test voltage 13.5 V ). As a standard aftermarket part, it stands out for its OEM quality , reliability, and precise fit in the original bulb holder.
Main features
-
Type: Xenon HID headlight bulb, category D3S (ECE), base PK32d-5 .
-
Lamp power/voltage: 35W / 42V (works with D3S ballast).
-
Luminous flux: 3200 lm (±15%).
-
Light color: ~ 4300 K neutral white (some previous publications indicate 4150 K).
-
Dimensions: length 83.2 mm , diameter 9.0 mm ; weight approx. 60 g .
-
Useful life: B3 2000 h / Tc 4000 h (series reference values).
-
Compatibility: Direct replacement for headlights with D3S lamps; not interchangeable with D1S/D2S/D4S/D8S .
-
Sustainability: Mercury-free (D3 family).
Product benefits
-
OEM Quality : performance and fit equivalent to the vehicle's original equipment.
-
Visibility and comfort : ~4300 K white light that improves contrast and reduces eye strain.
-
Reliability : long service life (B3/Tc) and stable flow maintenance over time.
-
Precise installation : PK32d-5 socket with integrated igniter for quick assembly with the appropriate ballast.
Use cases
-
Replacing D3S lamps in OEM xenon headlights.
-
Preventive maintenance in fleets and workshops that require ECE specifications.
-
Restoration of original color and shine compared to aged lamps.
Frequently Asked Questions
Is it compatible with my car?
If your headlight uses D3S (indicated on the headlight cover or in the manual), this bulb is compatible. It is not compatible with D1S/D2S/D4S/D8S headlights.
Does it need ballast?
Yes. It requires a D3S electronic ballast (the lamp operates at 42V; the 13.5V value is the vehicle system test voltage).
Is it worth changing both?
Recommended. Replacing them in pairs ensures uniform color and intensity in both headlights.
Is it mercury-free?
Yes. The second generation lamps (D3/D4/D8) are Hg-free .
Can I touch the quartz bulb?
Avoid it. Handle with gloves or a clean cloth to avoid leaving residues that shorten its lifespan.
Installation recommendations
- Check the ECE D3S category of the headlight before installation.
- Disconnect the battery and wait for the ballast to discharge. Replace it with the integrated igniter, ensuring it is correctly oriented.
- Check headlight alignment after replacement and clean the inside of the projector if necessary.
Project description
OSRAM XENARC 66340 ( D3S ) HID xenon lamp: power 35 W ; nominal voltage 42 V ; test voltage 13.5 V ; luminous flux 3200 lm (±15%); color temperature ~ 4300 K ; base PK32d-5 ; length 83.2 mm ; diameter 9.0 mm ; weight ~ 60 g ; lifespan B3 2000 h / Tc 4000 h ; ECE D3S approval; headlight application.
