FLEXI LED Lighting System with battery col. black Led Lighting System (lighter) compatible with FLEXI New Comfort, New Classic and Black Design S, M and L.Battery powered flashlight attached to the leash, ideal for walks after dark. It has two independent light streams – white at the front, allowing to illuminate the dog and red at the back, increasing our visibility and safety. Equipped with a simple and fast Velcro fixing system. A Velcro cap is attached to the set, which is protective when the lamp is not attached to the leash. USB C cable charging batteries on one charge can last up to 3 hours