Ark. Code Ann. § 27-36-220: Lamps on bicycles

(a) Every bicycle shall be equipped with a lamp on the front exhibiting a white light visible from a distance of at least five hundred feet (500') to the front and with a lamp on the rear exhibiting a red light visible from a distance of five hundred feet (500') to the rear.

(b) A red reflector meeting the requirements of § 27-36-215 may be used in lieu of a rear light.