The Evobus S 407 high beam headlight uses an H1 bulb size while the low beam headlight requires an H7 bulb size. The replacement chart covers vehicle production years spanning 2012 to 2017 with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H1 bulb is a single-filament halogen type operating on a two-pin base, commonly rated at 55 watts and designed for dedicated high beam applications where a focused, long-range light output is required.
The H7 bulb is also a single-filament halogen type but uses a different two-pin base that is not interchangeable with H1 fittings, typically rated at 55 watts and optimized for low beam projection patterns.
The Evobus S 407 uses the H1 bulb size for the high beam headlight across the 2012-2017 model years.
The H7 bulb size is specified for the low beam headlight position across the same 2012-2017 range.
Because H1 and H7 bulbs share a similar wattage rating but use physically distinct base configurations, the two types are not interchangeable with each other despite their comparable power draw.
The consistent use of H1 for high beam and H7 for low beam across all six model years indicates a fixed dual-bulb headlight system, where each function is handled by a separate, dedicated bulb rather than a single multi-filament unit.