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W21/5W Halogen Car Bulbs Wholesale

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W21/5W Halogen Car Bulbs Manufacturers

Using high-quality glass, nickel-plated metal, and 100% pure krypton gas. The quality reaches the international first-class standard, and the service life is up to 300-400 hours. This model can be used for brake lights, providing convenience for the daily use of cars.
With plug and play design, it is easy to finish installation in a few minutes. There is no modification or wiring needed to replace the stocking bulbs. Direct replacement for easy operation.
The packaging method is 10 bulbs per box, with different colors available for selection, and offering customization service for logo and package box.
Haining Suez Car Lights Co., Ltd. is China W21/5W Halogen Car Bulbs Manufacturers and W21/5W Halogen Car Bulbs factory, specializing in the production of various automotive lighting lamps. Since 2006, we have been committed to the research and development of high-quality automotive bulbs, with rich production technology experience and advanced testing equipment (luminous flux, color temperature, life, high temperature and cold resistance, stroboscopic testing, etc.). After more than ten years of continuous development, the company has become one of the quality exporters in the industry, with an annual output of more than 12 million auto bulbs. We mainly produce various automotive halogen bulbs, automotive LED lights and automotive xenon headlights. The products cover car headlights, turn signals, brake lights, instrument lights, reading lights, license plate lights, etc., to meet customers' one-stop purchase needs. With the tenet of "quality for survival, reputation for development", the company provides customers with consultation, ordering and high-quality after-sales service at any time, so that customers can buy with confidence.

Honor certificate

  • CE-EMC
  • ISO9001
  • ROHS

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Industry Knowledge

W21/5W halogen car bulbs are dual filament bulbs commonly used in automotive lighting applications, such as brake lights and turn signals. They are called "W21/5W" because they have two filaments with power ratings of 21 watts and 5 watts respectively. The 21-watt filament is used for the brighter brake light, while the 5-watt filament is used for the less intense tail light.
The W21/5W bulb uses halogen technology to increase its brightness and efficiency compared to traditional incandescent bulbs. The halogen gas inside the bulb allows the filament to burn at a higher temperature and produce a brighter, whiter light.
W21/5W halogen car bulbs are designed to fit in most automotive lighting sockets that use this type of bulb, and they are widely available at automotive stores and online retailers. They are also relatively easy to replace, as they can be installed by simply removing the old bulb from its socket and inserting the new bulb. However, it's important to handle the bulb carefully and avoid touching the glass to prevent premature failure due to oil residue from skin contact.
The W21/5W halogen car bulb is a type of dual filament bulb commonly used in automotive applications, such as brake lights, turn signals, and daytime running lights. Here are some key features of this type of bulb:
Dual filament: The W21/5W bulb contains two filaments, one for the tail light and one for the brake light, which allows it to serve as both a running light and a brake light in the same bulb.
Halogen technology: The W21/5W bulb uses halogen gas to increase its brightness and improve its efficiency compared to traditional incandescent bulbs.
Standard size: The W21/5W bulb has a standard size and is designed to fit in most automotive lighting sockets that use this type of bulb.
Long lifespan: With proper usage, the W21/5W bulb can last for many years, making it a reliable and cost-effective option for automotive lighting.
Easy to replace: The W21/5W bulb can be easily replaced by simply removing the old bulb from its socket and inserting the new bulb. It's important to handle the bulb carefully and avoid touching the glass to prevent premature failure due to oil residue from skin contact.
Overall, the W21/5W halogen car bulb is a versatile and durable option for automotive lighting applications that require a dual filament bulb. It provides reliable performance and is widely available at automotive stores and online retailers.

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