How long does the battery last? Is the battery rechargable?

The battery lasts 4-20h based on the light gear, rank of modes' energy cost : fog mode >> always on > 2 flashing modes.

The battery of helmet and remote are rechargable, with the cable inside you can charge to full with 3h.

DO NOT use other cables!!

How bright can the light be?

For the front light, it's visible from 600 yards, but remember it's only an alert light and can't light up the road.

For the rear light, it's visible from more 1/2 miles.

What comes with the helmet? What's in the package?

Except for the helmet, there are: remote, remote mount, brim, dual usb-c charging cable, an extra liner, a repair kit of 4 magic-hooks.

Besides, we have bug net already built inside the helmet. So it can be a all-in-1 helmet set.

Does the helmet suits all kinds of rider?

NO! It's NOT designd for: tools which faster than 45km/h(or 28mph), kids, round head.

Also, we have M/L size voces form 55cm - 63.5cm, customers whose head circumference larger than 63.5cm should consider other products.

What's the weight of the helmet?

For the M size, the weight is 440g. For the L size, the weight is 465g.