I put some $40 Amazon Led fanless bulbs in. They are quite a bit brighter. They dont necessarily shine farther, just brighter all around.
Ive had them in since spring. I trail ride, so my headlights are always on day or night.
Sorry I dont recall the brand off hand, but they are the finned fanless, not the ones with the metallic tail that you spread apart. 360* beam 2 sided. Probably all made by the same factory in China. Next time I go to my shop I look and see if I still have the box for the brand.
I figured the fan cooled ones would clog up with mud right away and stop the fan from working.