I just purchased a set of these bulbs, installed them and they dim when I switch to bright. Any thoughts? The set I bought are supposedly 6000 lumen, but there was no product information or instructions in the box when I bought them. Any help would be appreciated. Thanks.

 

What brand are they? I bought some in a black and white box that simply said "LED". I did have to" index" them to get proper light. One bulb was right but the other went dim when I switched to highbeam. When you looked at it from the front it got brighter but I don't know where the light was shining, definitely not on the road. After I rotated it to match the other one they worked properly.