SecurityIng Waterproof 1200 Lumens LED Bicycle Light in 4k UHD

Purchase link: https://www.amazon.com/dp/B00C2MHNJK

The light has four levels of brightness, high and strobe mode for 2.5hrs, mid and mode mode for 3hrs.

Battery Indicator (beside the blue button):
- Three lights lit on (power more than 80 %)
- Two lights lit on (power between 50 % and 80 %)
- One light will lit on and will flash three (runtime less than 30 minutes)