Product Detail:

Brand: ROCKBROS
Name: Light helmet, Cycling Helmet, Bike Helmet, Bicycle helmet
Power: USB charging
Feature:Ultralight, Intergrally-molded, Insect net helmet
Function:Water repellent, Shockproof, Safety
Battery:2000 Milliampere
With CE certification

Time:
-- Mighty about 4 hours
-- Low about 9 hours
-- Flash about 24 hours
Only side & rear warning light about 1 month