The LEDriving PREMIUM W21W LED retrofit lamps can be used for various vehicle exterior applications. The lamps are compatible with conventional W21W lamp bases and maintenance-free thanks to long lifetime and short-circuit protection. The lamps are available in Cool White, Amber and Red light colors. OSRAM offers a 6 year guarantee for these retrofit lamps. These products are not ECE-approved and must not be used on public roads in any exterior application. Use on public roads will invalidate both the operating license and insurance coverage. Some countries prohibit the sale and use of these products. Please contact your local distributor for information on your country.