The Triumph Trophy SE uses H7 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 2013 to 2017 with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H7 is the sole bulb type specified for the Triumph Trophy SE across both the high beam and low beam headlight positions for the 2013-2017 model years.
The H7 is a single-filament halogen bulb, meaning each unit serves only one lighting function, which accounts for its use in separate high beam and low beam sockets rather than a shared dual-filament arrangement.
H7 bulbs operate on a 12-volt, 55-watt electrical specification and use a PX26d base, a two-pin connector format that is not interchangeable with other common bases such as the H4's P43t or the H11's PGJ19-2.
The H7 is produced under ECE (Economic Commission for Europe) standards and carries approval for use in the United States and Japan as well, giving it broad regulatory acceptance across major markets.
Because both the high beam and low beam positions on the Trophy SE share the same H7 specification, the bulbs are physically identical, though they remain installed in separate housings and are not functionally interchangeable between positions.
The PX26d base features a retaining tab that locks the bulb into its housing at a fixed rotational position, which is relevant to filament alignment within reflector-type headlight assemblies such as those found on the Trophy SE.