I ordered the same bulbs from the same site for my 1994 E420. I noticed improvement in the beam quality right away. The headlights were brighter, and they also illuminated the road signs a lot better. They are NOT DOT approved, but who is going to stop you? The only thing that might get in the way of the improved quality of the bulb is the quality of the headlight assembly. If you have lousy reflecters in your headlight assembly in the first place, then the problem with poor lighting and bad beam pattern is in the headlight assemblies themselves. In 1994, they changed the headlights in all W124s, so I enjoy semi-Euro headlights. Hope this helps.
1994 E420 (W124)
1968 250SE (4 speed manual)