Originally Posted by Jarery

Same one.
Mountrs under the top tube, has a long velcro elastic strap that wraps over the top tube and holds the battery tight to it. You could mount to your down tube also.

I like the slightly exposed bulb, it lets some light escape from underneath which lights the front hub area of my bike. I commute 2 hours a day all thru pacific northwest rain, and rain has never caused a problem with the non enclosed bulb. I mount my light under my handlebars, so that I can still flip my bike upside down to change a flat without having to fitz around with the lights. No idea how it compares to the othger lights you listed since ive not used them.