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)
Very bright and great for daytime use. You may want to use one of the dimmer modes at night though. Fits well on the bikes, you can mount it on the seat-post or down by the seat stays.
A Great Light
A great light with fabulous battery life, multiple modes to choose from... a bit pricey but sure to keep you visible even during daytime rides. Thanks Cyclop for bringing this fabulous product to India and thanks for the great order delivery time....