The H3 halogen lamp is a powerful light source frequently used in vehicle headlights and spotlights. It incorporates a tungsten filament within a quartz glass capsule filled with halogen gas. This gas extends the lifespan and durability of the lamp by regenerating the tungsten. H3 lamps offer brighter light and better visibility than standard bulbs, making them ideal for use in poor weather conditions. With an operating voltage usually of 12V or 24V, they are easy to replace but require caution due to high temperatures reached during use.