No more empty batteries and no more hassle with lights on your bike. With LITTA you have a bicycle lamp that continues to work. This waterproof bicycle lamp is equipped with an efficient solar panel so that the battery always remains charged. Even after five hours of use, the batteries retain enough power to keep you visible. You will never be in the dark. Runs 20 hours on a full charge. First 5 hours: 5 Lumen (bright), last 15 hours: 1 Lumen (visible). Fully charge in 4 hours of sunshine, charge 50% on a cloudy winter day.