The A15 Automatic Monkey Light bike light illuminates automatically and only when you need it.
The A15 Automatic Monkey Light LED unit attaches the spokes of the bike wheel and connects to a battery unit attached to the hub. An ambient light sensor and accelerometer embedded in the module will trigger the LEDs to illuminate only when it is dark and the wheel is in motion. This helps save battery life, with a single USB charge lasting 17 hours. The A15 Automatic Monkey Light LED also allows for some personalization, with 23 different light and color patterns to choose from.