“A very good compromise between higher power units and lower power which includes those that run from primary cells such as AAAs. One for the Helmut and one for the front on the the handle bars and your set to do any general low light riding you may wish. Include those nice starry nights with no street lighting. These are light weight and have very good run times on low power setting which you are most likely to use. Transportable from bike the next real easy too. So take them if parked in public places. Buy these and your not likely be disappointed.”
