2 Torches in 1 with 3 modes.
Choose from 100% light, 50% light or strobe .
The Backup can be used with either one CR-123A lithium battery or one AA 1.5 volt battery using the adapter supplied.
Features when powered by one lithium battery: on/off standard 100% light, pressure switch one tap (when on), switches to 50% light pressure switch. Two taps (when on) switches to strobe feature.
Length 3.5 Inches.
Features when powered by one AA battery (using adapter supplied): On/off standard 100% light length.
4 Inches.
Head diameter 3.75 inches.
Batteries included.