The TL 6.0 will help keep you safe and seen from behind (210 degree visibility). The TL 6.0 operates on 2 AAA batteries (included) for up to 60 hours on flash. FEATURES a Lumen Output: 25a 4 Modes with a Run Time up to 60ha 2 x AAA Alkaline Battery Powereda Weight: 70ga Battery: 2 x AAA Alkalinea Increased safety with 210Adeg of Visibilitya Budget Friendly Rear Lighting Systema 25 Lumen taillight with Eye Catching Flash Patternsa Water / Dust Resistant IP64 Rated