Because it's no fun riding in the dark! Matter of fact, if you skate after sunset, you must wear either reflective materials, a flashing reflector or a light on both your front and back. All skaters using the city streets must obey the same rules of the road that apply to bicycles. Portland City Ordinance 20.12.205
THREE BRIGHTNESS LEVELS: Three brightness levels allow you to choose from HIGH power at 160 lumens, lasting 2 hours, LOW power at 80 lumens lasting 4 hours, or strobe setting, lasting about 5 hours.
Shredlights are included free with rental!