The Can-Am Defender high beam and low beam headlight bulbs both utilize an H8 size. Replacement bulb specifications for the Defender are documented in a chart covering 2016 through 2019 production years.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H8 bulb is the sole bulb type specified across all listed positions and model years of the Can-Am Defender, covering both high beam and low beam headlight applications from 2016-2019.
The H8 is a single-filament halogen bulb, meaning it contains one tungsten filament and is not designed to serve dual lighting functions within a single unit.
H8 bulbs operate at 12 volts and 35 watts, placing them in the lower wattage range among standard automotive halogen bulbs.
The H8 uses a PGJ19-1 base, which is a specific bayonet-style connector not shared with many other common halogen types, making cross-substitution with bulbs such as H11 or H9 inadvisable despite their physical similarities.
The H8 is rated under ECE standards, a regulatory framework used across Europe and much of the world, and also carries approval for use in the United States.
Because both the high beam and low beam positions share the same H8 specification across 2016-2019, the same bulb part number applies to either socket on the vehicle.