501 Bulbs

501 Bulbs, also commonly known as W5W Bulbs or T10 wedge bulbs, are compact capless automotive lamps widely used across a variety of vehicle lighting applications. Operating within both 12V and 24V electrical systems, these bulbs are designed to provide reliable illumination while maintaining low power consumption. Their compact wedge-base design and broad vehicle compatibility have made them one of the most popular auxiliary bulb types used in modern vehicles.

These versatile bulbs are compatible with most vehicle makes and models and can be used for a wide range of exterior and interior lighting functions. Common applications include front sidelight bulbs, parking light bulbs, side indicator bulbs, high-level brake light bulbs, registration plate bulbs, and number plate bulbs. Inside the vehicle, they are frequently fitted as sun visor lights, car boot lights, puddle lamp bulbs, car welcome lights, dome lights, glove box lights, map reading lamps, and courtesy light bulbs, providing dependable illumination throughout the cabin.

Available in halogen, LED, and xenon variants, these bulbs can be selected in a range of brightness levels, colour temperatures, and performance specifications to suit different vehicle requirements and driver preferences.

Their simple plug-and-play design allows for quick and straightforward installation without the need for specialist tools or technical knowledge. Whether replacing a failed bulb or upgrading to a brighter alternative, 501 bulbs offer a reliable and cost-effective lighting solution for both interior and exterior vehicle applications.