Fenix HM23 headlamp Features:
240 max lumens
Max runtime up to 100 hours
180° adjustable beam for different angle options
Compact, lightweight, and ultra comfortable
Neutral white LED for better color recognition
Uses one readily available AA battery
Reflective headband for nighttime visibility
User friendly one button operation
Waterproof, able to be used in extreme environments
New headband design for more comfort and breathability
All metal housing for durability
Impact resistant for rugged use

Included:
1 x HM23 Headlamp/Hollow Headband/Silicone Holder
1 x AA Alkaline Battery
1 x Spare O-Ring
1 x EdisonBright battery carry case
Warranty Card
User Manual

Technical Specifications:
LED: CREE - Neutral White LED
Power Source: 1 x AA (included)
Peak Beam Distance: 53 meters (173.88 ft.)
Peak Beam Intensity: 830cd
IPX Rating: IP68 (submersible up to 2 meters)
Impact Resistance: 2 meters (6.56 ft.)

Brightness/Runtime/Throw Distance:
High: 240 lumens (830cd) - 8 hours - 53 meters
Medium: 70 lumens (280cd) - 16 hours - 30 meters
Low: 4 lumens (22cd) - 100 hours - 9.5 meters

Dimensions:
Length: 2.74" (69.5mm)
Height: 1.57" (40mm)
Width: 1.26" (32mm)
Weight: 1.52oz. (43g) excluding battery