- Functionality : The headlight dimmer switch enables drivers to easily adjust headlight brightness according to ambient light conditions. If your headlight switch is malfunctioning or LED dash lights flicker, replacing the dimmer switch is essential for safe driving. Our switch is rigorously tested for reliability and longevity, with an OEM design ensuring a perfect fit for your vehicle. - Compatibility : This headlamp dimmer switch is compatible with various models, including: - 2003-2006 Chevy Silverado 1500, 1500HD, 2500HD, 3500, and 2007 Silverado Classic - 2003-2006 GMC Sierra 1500, 1500HD, 2500HD, 3500, and 2007 Sierra Classic - 2003-2006 Cadillac Escalade, 2003-2006 Hummer H2 Before purchasing, please confirm your vehicle model in the product description. - Direct Replacement : Replaces OEM part numbers 19381535, D1595G, 15194803, 1802-311218, 1S8489, and 53-22773. The switch features a plug-and-play design for easy installation, providing functions for low beam headlights, parking lamps, automatic mode, dome override, and instrument panel brightness control. - Premium Quality : Crafted from eco-friendly and durable ABS material, this switch offers a smooth, scratch-resistant surface and comfortable touch. Advanced internal circuit boards ensure structural integrity, providing dependable and consistent performance. - Use Scenarios : - On dark country roads, adjust your headlight brightness to enhance visibility. - When driving in foggy conditions, set your lights to a lower setting for improved safety. - Easily control the instrument panel brightness at night for better visibility without distraction. This headlight dimmer switch is a reliable solution to enhance your driving experience, ensuring visibility and safety under various conditions.