Prepare your semi to be Ready for the Road Ahead , with the Eiko Lighting 12.8V Miniature Automotive Halogen Light Bulb Capsules that offers bright and reliable lighting. Due to its multipurpose design, this replacement component is able to work with a wide range of accessories to provide enhanced visibility and safety standards. Constructed with a streamlined body for a fast and easy installation. FleetPride is your First Click in Heavy Duty .