Featuring options for brightness, beam shape, and power source, the blue HL18R Rechargeable Headlamp from Fenix provides hands-free lighting for running, dog-walking, cycling, hiking, and general hands-free use. This lightweight headlamp cranks out a bright 400 lumens at the top spot-beam setting and will run for an impressive 145 hours on the low-power flood-beam setting. There's also an emergency setting that blinks the SOS at 30 lumens for up to 72 hours. The elastic headband has reflective markings and is designed for anti-slip performance. To make sure it doesn't come on by accident in your bag, the HL18R has a lockout feature that prevents accidental activation. The light and headband weigh a little under 3 ounces.