All lamps are new. The same bulb, power supply and light tunnel were used for each test.

Marchal 7" round flat-face H4 high/low beam (Approvals: ECE car and motorcycle, SAE motorcycle)


Cibie 7" round H4 high/low beam (Approvals: ECE car and motorcycle)


Hella 7" round flat-face H4 high/low beam (Approvals: ECE car and motorcycle)