EXTRAORDINARY 100 LUMEN BRIGHTNESS - This 100 lumen USB rechargeable tail light blasts a powerful red beam to be seen far and wide. Powerful enough to be seen day and night, yet refined into a small profile. High output red LED with collimator amplifies visibility from great distances.

DAYTIME RUNNING LIGHT TECHNOLOGY - Get noticed day & night with 4 highly visible unique flashing modes optimized to be seen in high city traffic and open country roads, 2 steady output modes for high brightness anytime, and a group-friendly low output during group rides.

EXTRA TOUGH & DURABLE - This pro grade bike tail light is certified IP67 waterproof and FL-1 drop impact resistant. Ride through heavy rain storms, dust storms, endure accidental drops, and much more for years of use.

AMERICAN STANDARD - Developed by a team of American designers and engineers in order to give you stylish high quality and high output lights. Our 100 lumens stands out for your safety. Other taillights that don’t indicate their lumens are usually only a few lumens, limiting your visibility and safety.

SECURE AND EASY MOUNTING - The heavy duty flexible mount conforms to seatposts (Fits up to 4 inch circumference,1.25 inch DIA) seatstays, and helmets. The light’s adjustable hinge can be aimed up and down to be focused where needed.