All lamps are new. The same bulb, power supply and light tunnel were used for each test. For an explanation of how to understand the diagrams on these pages, which will open in a new tab or window for you, please click here.

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


Cibie 7" round Z-beam 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)