From the manufacturer

When you need the best, brightest, most waterproof, feature rich headlamp that is also ready for any adventure no matter the conditions, reach for the Storm 500-R Headlamp. Powered by our BD 2400 Li-ion battery that’s charged by a micro-USB, the Storm 500 R also features a sustainably made elastic headband with Repreve recycled textiles.

Features

• PowerTap™ Technology allows instant adjustment between max output and dimmed power
  
  
• Patented digital lockout feature safeguards against accidental use when stored in a pack or pocket
  
  
• IP67: Waterproof and dustproof, completely sealed and tested to operate up to 1 meter underwater for 30 minutes. Requires no maintenance after submersion
  
  
• Fueled by a BD 2400 rechargeable Lithium Ion battery that charges via micro-USB
  
  
• Features sustainably recycled Repreve elastic headband
  
  
• Emits up to 500 lumens on max setting
  
  
• Brightness Memory allows you to turn the light on and off at a chosen brightness without reverting back to full power
  
  
• Regulated for constant light output
  
  
• Settings include full strength in proximity and distance modes, dimming, strobe, red, green and blue night-vision, and lock mode
  
  
• Multifaceted optical lens design
  
  
• 3 year warranty

Specifications

• Weight: 120 g
  
  
• IPX Rating: IP67
  
  
• Max Burntime: [High] 7 hrs • [Medium] 19 hrs • [Low] 350 hrs
  
  
• Batteries: 2400 mAh Li-ion
  
  
• Lumens: [High] 500 lm, [Medium] 250 lm, [Low] 6 lm
  
  
• Max Distance: [High] 120 m • [Medium] 60 m • [Low] 12 m
  
  
• Country of Origin: China