INTRO:

With the recent release of Fenix's HP25 headlamp which has twin beams, I thought it useful to review this light as a potential emergency/back up light.

SPECIFICATIONS:

  • Utilizes two Cree XP-E LEDs with a lifespan of 50,000 hours
  • Uses four AA (Ni-MH, Alkaline) batteries
  • Light: 76.0mm (Length) x55.7mm (Width) x31.5mm (Height)
  • Battery case: 88.8mm (Length) x73.7mm (Width) x26.2mm (Height)
  • 183.5-gram weight (excluding batteries)
  • Digitally regulated output maintains constant brightness
  • Two light sources with individual dedicated control system
  • Lockout function prevents the light from accidental activation
  • Reverse polarity protection guards against improper battery installation
  • Rugged aluminum chassis to shed heat and impact
  • Rated output - 360 Lumens (Tested outputs: 395/423 Lumens - see below_



PACKAGING AND CONTENTS:

Fenix hp25 headlamp-front-package.jpgFenix hp25 headlamp-rear-package.jpg
Fenix hp25 headlamp-contents.jpg
Fenix hp25 headlamp-front.jpg
Fenix hp25 headlamp-battery-pack.jpg


OPERATING MODES:

The HP25 has two emitters, independently controlled by two electronic buttons. Each emitter is controlled by the button directly above them, the Spot button labeled with parallel lines and the flood button with diverging lines. Each emitter has four available modes, though not the same modes.

To turn an emitter on, hold down the button for about a second. To change the brightness, pressing the button will advance you to the next mode in the sequence.

For the Flood emitter, the sequence is:
  • Low
  • Medium
  • High
  • Turbo



For the Spot emitter, the sequence is:
  • Low
  • Medium
  • High
  • SOS, which is accessed by holding down the Spot button for about two seconds (whether the emitter is currently on or off).



To turn an emitter off, hold down on it's button for about a second.

The emitters are controlled completely independently, so either can be on any mode or off at any time without being affect by the mode of the other.

FORWARD RATCHETING LIGHTHEAD AND USER INTERFACE:

Fenix hp25 headlamp-tilting-interface.jpgFenix hp25 headlamp-tilting-mechanism.jpg

MOUNTED ON HELMET

Fenix hp25 headlamp-helmet-mounted.jpg

PERFORMANCE:

I found a technical assessment of the light's performance on survivalistboards.com which gave it excellent results - meeting or surpassing manufacturer specifications.

Fenix hp25 headlamp-performance-chart.jpg

SUMMARY:

Pros:

Separate flood and spot emitters!
Excellent regulation with NiMH
Very accurate output claims
Headband is comfortable
Adjustable light angle
Common battery type
Spot and flood beams controlled separately
Smooth mode transitions
Output relatively high for a headlamp

Cons:

Adhesive velcro creativity will be require to facilitate mounting to most helmets


BEAMSHOTS:

Fear not! - I will be shooting these over the next couple of nights per MTBR camera settings and posting