This standard was created by the American National Standards Institute (ANSI) to provide consistent performance measurements for handheld lights. Although bicycle lights are not required to follow this or any standard, Blackburn believes in offering full transparency in how the output, run time, water resistance and other performance claims are measured.
Front or Rear Capable
With the push of a button, the 2’Fer can switch between a white 60 lumen front light and a red 20 lumen rear light. Holding the button for 2 seconds turns the light on and off, and pushing the button once changes modes between white solid, red solid, white flashing and red flashing. The light also remembers which mode you were last using and turns on in that mode.
Excellent Side Visibility
Built in design features channel a bright hit of light to each side providing visibility to cross traffic.
LED Fuel Gauge/Charge Indicator
A small built in LED light indicates the battery level. Green = >75%, Orange = 75-25%, Red = <25%