They aren't the worst ones available, that's for sure, but of the name-brand bulbs and sealed beams they are at the bottom of the heap.
There's word from BLF that there have been quality issues (Mismatched anodizing) of AceBeam lights, raised out of some of the lights purchased duringjonwkng Today, 09:24 PM
I don't know if your wanting 2 beams up front at same time. I have used extra holder to mount my H51 and H50 to same head strap . One in front onechadvone Today, 09:17 PM