Light and Motion Urban 500 Commuter Headlamp Lumens: 500 Runtime: High-1:30 Med-3:00 Low-6:00 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 and helmet mount tool-less mounting works on bars or stems Lightweight and compact