Well, I set about finding something comparable online. I took time to assess exactly what I wanted the lights to do for me: they needed to make me visible, but did not need to be extremely bright as most of the area where I plan on using them is additionally lit by street lights. I also knew I wanted them to have the blinky function as I personally notice bikers using such lights when I'm driving. I knew to keep costs in line that generator lights were out of the question for the moment, no matter how attractive they seem. So for the most part, my lights need to attract attention from drivers. With that in mind, I decided to go with cheap as my top criteria and ended up with these. The reviews seemed to reflect that these would function adequately for my purposes.
With my other project experiences in mind, I tried to slow things down a bit with this process. I immediately noticed that Bell did a nice job of including spacers so the lights would fit a variety of tubes. The second thing I noticed is that Bell made it possible to install these with no tools, which is nice for those of us with no bike shop in a spare room. I simply decided where on my handlebars I wanted the headlight, inserted a spacer, and twisted the knob until the light clamp was secure. Then I popped the light onto the clamp and voila! Headlight.