They should be very easy to mount to the handlebars using one of the Twofish products. The look to wide to mount using the AA sized lockblock I used for AA lights, but they make wider ones for locks and bigger lights. Other people have used conduit hangers and sections of old inner tubes to amke big rubber bands to attach lights.

I'm unsure how long the battery lasts too, my GF bought them to use as flashlights, and I only used one for about a minute to see how bright it was.

I doubt they're really 200 lumens (just like my magicshine isn't 1,000 lumens), but the package had over 3 times the rated lumens as my Fenix did when I bought it, for 1/3 the price.