RAPID X FRONTCOB LED technology Li-Polymer battery Upto 50 lumen output 360 degree visibility USB recharge (2 hrs) Complex circuitry allows safe charge & discharge Battery Auto Save (auto flash)6 Modes: Constant / Flashing / Rapid / Vibration / High / Low Runtime: 1Â-30 hrs depending on mode Dimensions: W24.4 x H 30.8 x L74.2mm RAPID X REARCOB LED technology Up to 25 lumen output USB recharge Li-ion Polymer battery O-Ring attachment with adapter included Battery Auto Save (auto flash)6 Modes: Constant / Flashing / Rapid / Vibration / High / Low Runtime: 1Â-30 hrs depending on mode Weight: 22.5g