DURACELL FRONT+REAR 1 LED BIKE LIGHT SET 00919 Properties: Set of bicycle lights for front and rear, working up to 48 hours (front) and 53 hours (rear). They light up in two modes: steady and flashing. Very handy and practical. Specification: 1x LED, two lighting modes: constant and flashing, set includes: mounting, set of button batteries, water-resistant model.