If you own a late model Honda, Suzuki or Kawasaki, look at the bulbs.
If it looks like a standard H4, but is marked “45/45 watt”, it’s NOT a standard H4 bulb.
Shims will be required for proper installation of any standard H4 bulb.
You can see in the photo the two sets of tabs at the bottom of the bulb.
You must trim off the bottom 2 tabs so that the bulb will go into the housing.
Here is where the problem lies; doing so actually causes the bulb to point up, not straight as needed for proper light disbursement – these shims correct this problem.
These shims are laser cut stainless steel so you will never need another pair.
Price per pair.
Made in USA.