ACDelco ACD1S D1S HID Xenon Low Beam Headlight Bulb 35W

The ACDelco ACD1S is a D1S High Intensity Discharge (HID) Xenon headlamp bulb from ACDelco's Advantage line. Delivering 35 watts of crisp, clear light output, this low beam bulb is a direct-fit replacement for vehicles originally equipped with D1S HID headlamp systems — commonly found on European luxury and performance vehicles.

Unlike traditional halogen bulbs, HID technology produces light through a plasma arc discharge rather than a heated filament, resulting in a brighter, whiter light output while drawing less power. The ACD1S produces a clear beam with a color output that closely matches factory OEM HID systems.

Key Features:

• Bulb Type: D1S High Intensity Discharge (HID) Xenon
• Beam Type: Low Beam
• Wattage: 35W
• Color: Clear (white HID output)
• DOT Approved and street legal
• Non-halogen plasma arc discharge technology
• Sold as a single bulb (SLP = Single Pack)
• Manufactured to OE-level quality standards
• 24-month warranty coverage

The ACD1S is the ACDelco Advantage-line replacement for D1S HID headlamp systems, offering a cost-effective option that meets OE specifications for fit, form, and function. Replace bulbs in pairs to ensure even, consistent light output from both headlamps.