Fenix Grey HL23 Adventure Proof 150 Lumens LED Headlamp-Include 1xAA & LumenTactical AA Battery Organizer Max 150Lumens with three brightness settings - great for outdoor and indoor uses Super light and convenient to carry- 2 Ounces Only Meeting IP68 rate standard-Shockproof, Waterproof and Dustproof Use one commonly available AA Battery (included) Also include a LumenTac AAl battery organizer that holds 4x AA Batteries for backup