Features:
Dimension：74.0 x 31.0 x 39.0 mm
Weight：46g (with batteries)
Light source：COB LED
Battery：Lithium-ion rechargeable battery
Runtime：High mode (150 lumens)： 1 hr
Low mode (20 lumens)： 5 hrs
Flashing mode (30 lumens)：30 hrs
Rapid mode (50 lumens)：16 hrs
Pulse mode (20 lumens)：16 hrs
Vibration mode (30 lumens)： 8 hrs
Recharge time：3 hrs (USB2.0)
Mount size：Rubber band mount (fits φ 12.0-32.0mm)