I use SilverStar Ultras for the increased light output with the knowledge I might have to replace the bulb yearly since they burn out faster.
I switched to that same bulb, recently. I also have gone out in front, and looked hard at my lights, and the one thing I DID change, is my 55W lights on the Cobra light bars - the 55W were great, with the headlight on bright, but TOO bright for normal running, IMO, and since I leave them on all the time, I went to 35W'ers. I like them a LOT better. If I ever decide to switch my running lights with the bright switch, I'll change them back
R