Princeton Tec Apex Extreme Headlamp



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In situations where your gear can't fail, bring this headlamp. For altitude and cold settings, the Apex Extreme has an external battery box that allows you to keep it next to your body to warm it and preserve battery life. It combines a super-bright 3W LED with a 4-LED cluster for spot and general purpose lighting. The impact-resistant, waterproof design can handle nasty weather, extreme cold and general thrashing.

  • Dual-switch system independently controls long-range spot light and close-range 4 LED cluster.
  • 2 large buttons are easy to operate with thick gloves on.
  • Battery power meter.
  • 5 lighting modes.
  • Regulated output for the first 2.5 hours: runs at (high) 275 lumens for 2.5 hours, then gets dimmer as the batteries drain for the remaining 97.5 hours.
  • Compatible with alkaline, lithium, and rechargeable batteries.

Tech specs

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Ideal for
  • Alpine climbing and mountaineering
  • Camping and hiking
Lighting levels

The number of lighting levels/modes the light has (i.e., low, med, high, flash).

5 modes
Beam distance - low 24m
Beam distance - med 72m
Beam distance - high 120m
Boost mode

Briefly increases the light output to maximum brightness and distance.

Light source 2 LEDs
Burn time - low 200 h
Burn time - med 130 h
Burn time - high 3 h
Max light output

The total quantity of light emitted in every direction from a source of light; measured in lumens.

275 lumens
Beam pattern

Beam pattern affects how much you can see within the area of light thrown from the headlamp. Wide beams are good for close-up; spot or focussed beams are good for long range visibility.

  • Wide
  • Spot
IPX rating

Indicates the degree of protection against liquid. IP X1: Dripping water while in normal operating orientation; IP X4: Splashing water; IP X5: Water jets; IP X6: Powerful water jets; IP X7: Immersion up to 1m ≤ 30 minutes; IP X8: Suitable for submersion as specified by manufacturer.

Power supply Replaceable batteries
Emits red light No
Regulated output

On regulated lights brightness is consistent, and does not decrease gradually as the batteries are drained.

Batteries 8 AA (included)
Flash mode Yes
Made in USA