+1! They're great, small and light. But you use the flashing mode?? That's harsh, these light are very powerful, using the flashing mode is super annoying. Someone coming towards me while having these lights flash would either have an epilleptic seizure or come kick my ass! I vowed to only use the flash mode in an emergency.

That said though having 2 lights allows configuring how the light is projected. In deep dark I like to have the lights one on top of the other to shine way ahead and the road. I lower it when someone comes towards me; I found out how blinding they can be! In city light I project them low in front of me (~4m) but spread laterally.