Waterproof headlamp with 520 lumens of brightness, a maximum beam distance of 18m, and approximately 48 hours of use in eco mode. - Model: HW-G433HD - Brightness: 520 lumens - Waterproof Performance: IPX4 - Power Source: AAA batteries x 3 - Beam Distance: Approximately 18m max - Modes: Strobe, Wide Mode - Usage Time: Approximately 48 hours (eco mode) - Weight: Approximately 100g (body only) New, unused. The outer box shows signs of deterioration due to home storage. Please rest assured that the item is unopened. Please purchase only if you understand this.