The Black Diamond ReVolt Headlamp is a powerful headlamp in a small package. Running on rechargeable AAA batteries, it packs an impressive punch of 300 lumens via 1 TriplePower LED and 1 DoublePower LED. The light also includes a single DoublePower red LED, for those nights where night vision is imperative. Hike, camp and explore in any weather, as this little light is waterproof.