Light and Motion Urban 180 Commuter Light Lumens: 180 Runtime: High-2:30 Med-5:00 Low-10:00 Weight 108 gr. The Urban line uses a single cell Li-ion cell carefully packaged inside the light. These products feature a new battery charge indicator that reliably reports the charge status so you know when to re-fuel. includes USB cable tool-less mounting works on bars or stems Lightweight and compact