For a technical user who expects all-around performance and features out of their headlamp but still values a small size and compact package.

Features:

• Dual-Fuel: Power with three AAA Alkaline cells (included) or the rechargeable BD 1500 Li-ion battery and charger (purchased separately) for maximum flexibility
• 400 Lumen max output
• PowerTap™ Technology allows instant adjustment between max output and dimmed power
• Integrated battery meter display shows % of power remaining
• Settings include proximity and distance modes, dimming, strobe, red LED night-vision and lock mode
• Brightness Memory allows you to turn the light on and off at a chosen brightness without reverting back to default setting
• Red night vision has dimming and strobe modes and activates without cycling through the white mode
• Multifaceted optical efficiency lens technology
  
• Digital lock mode feature safeguards against accidental use when stored in a pack or pocket
• IPX8:
• Waterproof-tested to operate at least 1.1 meters underwater for 30 minutes.
• If submerged, water may enter the battery compartment and it will still operate; it should be completely dried out after use in wet conditions
• Weight: 77.5 g with batteries