B007Y416US
This light is perfrect for trail, mountain bike, or commuting use. The 3 modes allow the user to fine tune for their intended usage. The light contains a helmet mount and handle bar mounting system. The stem mounted battery system allows a short wire to provide a clean and neat look.
Topeak Mega 10-Watt White lite (2.8X1.8X2.8-Inch),Topeak,TMS060