OSRAM 2850CW-02B - W5W LED Lamps (W2.1x9.5d) 6000 K, Homogeneous Light for Indoor Use - Pack of 2
The OSRAM 2850CW-02B is the latest LED replacement for W5W bulbs (also known as T10/W2.1x9.5d) in vehicle interiors. With a color temperature of 6000K (cool white), a luminous flux of 75 lm , and a nominal power consumption of only 0.80W , it offers modern, uniform, and efficient lighting, ideal for dome lights, courtesy lights, trunk lights, or glove box lights. Its optimized diffuser prevents the "LED spot" effect and distributes light evenly. Furthermore, the two-pack format facilitates paired replacements for a consistent look in the vehicle's interior. All of this is housed in a compact body (Ø 10 mm x 26.8 mm) and features easy plug-and-play installation on W2.1x9.5d sockets.
Main features
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Compatibility: LED replacement for W5W / W2.1x9.5d socket (T10 equivalent).
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Cool white light 6,000 K with high contrast and a modern look.
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Luminous flux: 75 lumens with homogeneous light without “selective lighting”.
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Efficiency: up to 80% less consumption compared to W5W/T4W/C5W halogen lamps.
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Power and voltage: 0.80 W nominal (1 W input) and 12 V.
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Dimensions and weight: Ø 10 mm, length 26.8 mm, 1.90 g.
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Reference lifespan: B3 2,500 h / Tc 5,000 h.
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Application: interior and signaling/indicator in passenger compartment.
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Presentation: pack of 2 (blister).
Product benefits
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Immediate energy savings thanks to its very low power.
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Modern aesthetics : 6000 K tone that modernizes the interior.
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Visual comfort : diffuser that eliminates points of light and shadows.
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Less maintenance : longer lifespan compared to standard lamps.
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Easy installation : direct replacement in W5W (T10) lamp holders.
Use cases
- Front/rear ceiling light and reading lights.
- Courtesy lights for doors and footrests.
- Trunk, glove compartment and cargo areas.
- Ambient/interior lighting of controls and compartments (depending on vehicle).
Frequently Asked Questions
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Is it suitable for exterior use (position, license plate, etc.)? It's an interior retrofit . It does not have ECE approval for use on public roads . For exterior use, it is only permitted off-road, at exhibitions, or on closed circuits according to local regulations.
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Will it fit my car? If your light fixture uses a W5W / W2.1x9.5d (T10) 12V base, the installation is straightforward. Please check your vehicle's manual or the original bulb.
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Will it give a bulb failure error? It depends on the vehicle's diagnostic system. Some models with bulb control may require an error-correcting adapter (not included).
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How does it differ from the 2850WW-02B? The 2850WW-02B is 4000K (warm white). This 2850CW-02B is 6000K (cool white) for a more modern look.
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Is it compatible with 24V? No, this model is 12V .
Usage and compatibility notes
Check polarity and base before installation. After installation, verify that the light turns on and does not interfere with other vehicle systems. For outdoor use, comply with regulations: this model is not approved for use on public roads outside the vehicle's passenger compartment.
Project description
OSRAM 2850CW-02B LED interior lamp, W5W socket (W2.1x9.5d, T10), 12 V, 0.80 W nominal (1 W input), 75 lm, 6,000 K cool white, dimensions 26.8 × Ø10 mm, weight 1.90 g, B3 lifespan 2,500 h / Tc 5,000 h, interior use/in-cabin signaling, pack of 2 units.
