Meets the ANSI FL-1 standard. This standard was established by the American National Standards Institute (ANSI) to provide consistent performance ratings for portable lights. Although bicycle lights are not required to adhere to this or any other standard, Blackburn believes in complete transparency regarding how light output, runtime, water resistance, and other performance claims are measured.

Usable at the front or rear. 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 a single press of the button cycles through the modes: white steady, red steady, white flashing, and red flashing. The light also remembers the last mode you used and turns on in that mode.

Excellent side visibility. Built-in design elements direct a bright beam of light to each side, ensuring visibility in cross traffic.

LED battery indicator/charging indicator. A small built-in LED light shows the battery level. Green = over 75%, Orange = 75-25%, Red = under 25%.

Universal light mounting. The silicone mount fits diameters of 15-35 mm and features a clip for clothing, bags, or racks.