Blackburn's Mars 4.0 has a 1-watt, ultra-bright LED, 2 side LED's and flashing and steady modes to keep you super visible. Plus, it easily attaches to your bike, rack or pack with the included mounts and it's light, durable and water resistant, too. You'll get up to 150 hours of runtime in flash mode.
Run Time: 50/150 hours (steady/flash)
2 AAA batteries included.