I was using the SOS Solid State ISO-model HLF, which is what I was using with the factory bulbs, and I just switched the bulbs to the LED's without knowing for sure whether they would work or not. I actually even sent SOS an email asking if they knew if LED bulbs would work, and they said "probably not."Which HLF did you use? I might be converting mine now after seeing your videos.
They fit very good. Not excellent. I feel like the stock bulbs had just barely a more "positive" grip when installed into the socket. I believe this is partially due to the design so that they can be rotated/adjusted to adjust the angle of the LED filement, as it's directional (but it doesn't matter for our style reflector).Any issues with the way they fit in the housing? I think I'm going to pick up a set after seeing your review.