The OSRAM Original W21W is a halogen signal lamp built to OEM quality standards. It uses a wedge glass construction and fits the W3x16d base, covering a broad range of signal lighting positions in cars and motorcycles.

Typical applications include side turn signals, stop lights, parking lights, licence plate lights, dashboard and interior lighting. The lamp is supplied individually in simple packaging.

Key Features

• ECE category W21W, mounting base W3x16d
• Wedge glass construction for direct OEM replacement
• Typical power: 21W at rated 12V
• Luminous output: 460 Lm
• Covers multiple signal positions: turn signals, stop, parking, licence plate, dashboard and interior
• OSRAM OEM quality — part number 7505

Product Benefits

• OEM quality construction matches the performance specification of the original factory-fitted lamp, maintaining correct brightness and colour for ECE compliance
• The W3x16d wedge base is a direct plug-in replacement — no tools or adaptors required
• At 460 Lm, the lamp meets the light output requirements for stop and turn signal applications where visibility is safety-critical
• The wide product range coverage means one lamp type serves multiple vehicle positions, simplifying spare parts inventory

Technical Specifications

• ECE Category: W21W
• Mounting Base: W3x16d
• Construction: Wedge glass
• Typical Power: 21 W
• Maximum Input Power: 25 W
• Rated Voltage: 12V
• Luminous Flux: 460 Lm
• Part Number: 7505
• Package: Single lamp
• Applications: Side turn signals, stop light, parking light, licence plate, dashboard and interior light

Why You'll Love It

• OEM-equivalent quality from the original equipment supplier means consistent, predictable performance compared to no-name alternatives
• The W21W is one of the most widely used automotive signal lamp sizes — finding a vehicle fitment match is straightforward using OSRAM's vehicle compatibility lookup
• Single-unit packaging means you buy only what you need without paying for a multi-pack when replacing a single failed lamp
• Wedge base installation is tool-free: turn to unlock, pull out, push in the new lamp, turn to lock