Original equipment quality seal for the most reliable performance. Economical replacement gets you back on the road for less money. All Philips bulbs are DOT compliant and completely street-legal. For paired applications, always replace both bulbs at the same time to ensure symmetric lighting. Old bulbs dim over time. For over 100 years, Philips has been continuously innovating automotive lighting. Original equipment quality seal for the most reliable performance Economical replacement gets you back on the road for less money All Philips bulbs are DOT compliant and completely street-legal. For paired applications, always replace both bulbs at the same time to ensure symmetric lighting. Old bulbs dim over time. For over 100 years, Philips has been continuously innovating automotive lighting. The Rally range offers maximum light output for driving in extreme conditions. Developed to off road usage, the Rally range gives you a perfect illumination to face any. weather or road condition with a reliable Philips product.