Abstract: A lighting system for bicycles and the like which incorporates forwardly and rearwardly mounted lighting assemblies. Each of these assemblies includes right and left turn indicator lamps mounted within housings each having an outwardly directed lenticulated lens, the discrete facets of which protrude in a direction outwardly from an associated lamp. These lenses are utilized in conjunction with lower energy level inputs to the lamps in which an oscillatory circuit to optimize the consumption of energy from a bicycle mounted battery power supply. The batteries of this supply as well as impedance and oscillatory logic circuitry in addition to a recharging circuit are mounted in a unitary housing which is readily removable from the frame of the bicycle for purposes of leaving it unattended. Through the use of a harness incorporating a releasable electrical coupling, this more elaborate and expensive component of the bicycle may be retained for safe keeping when the bicycle is stored or parked.