Hey Guest!
Thanks to both of Younes, you both hit it right on the head in multiple ways. Them ones from Jolly Rodgers seems a wee bit salty don't ya think? But maybe they're a better quality. I don't know anything about Jolly Rodgers' history. The ebay prices are more in line with my original source but like Steve said, they obviously don't last very long. That's why I was asking about other sources. I'll keep Jolly Rodger in my vintage Rolodex and look at e-bay for the price. Maybe they'll last 6 months.
The halogens work okay with the older Driving lights with the thicker glass.My point was the Moss ones don't last long - the ones with the front-to-back filament - I had two of them burn out in 18 months. IMO the halogens are the way to go.
There have been some objections to the halogens for heat-related reasons. An engineer friend pointed out the heat is a function of wattage - a 48W halogen is no hotter than a 48W incandescent.