Originally Posted by
Disposable
I just picked up a Serfas UTL-6 Thunderbolt to mount on my saddlebag. It's got multiple led's and no focusing lens so it's non-directional and painfully bright. From a distance it's no brighter than my Superflash straight back, but at 80 degrees to either side it's still as bright. The battery doesn't last much longer than my headlight, and that worries me some, but my plan is to charge it at the same time as the headlight. It mounts with two silicone straps which reassures me about keeping it.
Serfas finally has a product video of it up on their website, along with another video that's a bit more of a 'first impression/review'. Don't know how well it would mount to a seat wedge without a clip, but a bright, non-focused light is exactly what someone who has a slight spatial judgement problem needs. It looks like it doesn't matter if you line it up 'just right' to be effective, so long you point it in the general direction...