USB rechargeable internal Li-ion battery (USB cable included).
Battery low indicator - light flickers when turning on or off.
Light mode memory recalls last mode used.
Flexible mount for seat post / seat stay.
Water resistant design.
Published Weight：Approx 35 grams
5 Modes (OSP® Technology lets you fine tune brightness and flash speeds):
Single Flash - 18 hours
Zoom - 16 hours
SteadyPulse - 16 hours
Steady - 2:30 hours
Group Mode- 100+ hours
Recharge time： approx 3hrs
Advertised weight ~ 35g
Packed with features for safe cycling, this micro sized Hotshot™ combines a powerful 30 lumens of flashing red with 5 road-proven modes and an Enhanced Cycling Optic™ that scatters light at a wider angle for maximum distance and extra wide visibility during night and day use. Its Versatite™ flexible mount lets you attach the Hotshot Micro 30™ tail light to most seat posts and seat stays, including aero styles.