Cosmo 350 Headlamp from Black Diamond is a water-resistant headlamp that works with both BD 1500 batteries and standard AAA batteries. The lamp has a maximum brightness of 350 lumens. Integrated battery indicator and settings include dimming, flash light, red night vision and lock mode. AAA-batteries are included. Black Diamond Cosmo 350 Headlamp Octane | Buy Black Diamond Cosmo 350 Headlamp Octane here | Outnorth