waterproof headlamp with light emitting diodes
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Waterproof LED Headlamp – Princeton Tec Apex

$84.99

This is the bright and versatile Apex LED headlamp, manufactured by Princeton Tec in the USA. A waterproof LED headlamp, Apex is rated for three foot submersion for 30 minutes. Turn on the single regulated Maxbright LED for a powerful spot beam or use its four regulated Ultrabright LEDs for bright flood light. Both LED systems, Maxbright and Ultrabright, have high and low power modes; the Ultrabright LEDs also have a flashing mode. When turned off, the battery power indicator blinks on/off for 24 hours to help you find the headlamp (useful in a dark space), then it stops to conserve power. Proprietary heatsink technology and circuit voltage regulation allow the LEDs to burn brighter and longer. The Apex is compatible with AA–size alkaline, lithium, and rechargeable NiCad and NiMH batteries. Four AA alkaline batteries included.

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Product Description

Princeton Tec headlamps compared; video credit: GearWebsites.com.
  • The large diameter Maxbright LED provides a tightly focused spotlight for distance illumination (up to 120m / high power).
  • The four smaller Ultrabright LEDs provide wide-angle flood light for proximity and task work.
  • Flip–down bracket on adjustable elastic headband permits downward aiming of headlamp in increments
  • Headband has top strap which keeps headlamp from sliding down on your head
  • This headlamp is rated IPX7 by IED standard (one meter submersion for 30 minutes).
  • 4 AA size alkaline batteries included, although lithium, or rechargeable NiCad or NiMH batteries may be used.

Apex Waterproof LED Headlamp Specifications

CriteriaDescription 
Output200 lumens
Lamp(s)(A) 4 Ultrabright LEDs, AND
(B) 1 Maxbright LED
Overall burn time
discontinuous use
(alkaline batteries)
4 Ultrabright LEDs @ low power150 hours1, 2, 3
4 Ultrabright LEDs @ high power100 hours
1 Maxbright LED @ low power96 hours
1 Maxbright LED @ high power72 hours
Constant use burn time
(alkaline batteries)
4 Ultrabright LEDs @ low power14 hours
4 Ultrabright LEDs @ high power8.5 hours
1 Maxbright LED @ low power9 hours
1 Maxbright LED @ high power1 hours
Batteries4 AA alkaline (LR6, included), lithium (L91), or rechargeable NiCad, NiMH
Waterproof ratingIPX71 meter submersion for 30 minutes
Weight9.8 oz (279 grams)
Battery stateThree-color green / yellow / red LEDShows > 40% / <= 40% / ~20 minutes charge remaining4
UL ratingapproved
UL classificationClass 1 Division 2 Groups A, B, C, & D; Class 2 Division 2, Groups F & G
UL temp codeT4
Footnotes
1 Burn time is the duration of time the headlamp emits 0.25 lux at 2 meters. 0.25 lux is equivalent to the light of the full moon on a clear night.
2 Burn times shown here assume fresh batteries and use at one power setting for duration of test.
3 Alkaline batteries provide higher light output than NiCad or NiMH rechargeable batteries due to their higher voltage.
4 Please read user manual (see below).

Operating the Apex Headlamp

These instructions are intended not to replace, but to complement, information shown in the official Apex LED headlamp user manual from manufacturer Princeton Tec.

LED power switch

LED lamp switches

Two Power Switches

The photo at left shows both of the LED power switches (marked A and B at left) on this LED headlamp. With the unit on your head, the switches are located on the headlamp’s underside. This is convenient for thumb action with opposing index finger on the headlamp’s top. The switches not only turn on the headlamp but, with successive clicks, activate various lighting modes described below.

  • Switch A controls the four Ultrabright LEDs
    • It has four nubs
    • Select high, low, or flash mode
  • Switch B controls the center Maxbright LED.
    • It has a circle
    • Select high or low mode
  • Longer depressions of A or B turn off the respective LED

Operating Modes

Green rings in the illustration depict the illumination state, not actual color. The LEDs put out bright white light.

Flood light mode
  • Depress A once - 4 Ultrabright LEDs on high
  • Depress A twice - 4 Ultrabright LEDs on low
  • Depress A three times - 4 Ultrabright LEDs flash
Spot light mode
  • Depress B once - 1 Maxbright LED on high
  • Depress B twice - 1 Maxbright LED on low

To turn off the headlamp, in either spotlight or floodlight mode, press and hold the respective switch (A or B) for about two seconds.

Battery State

battery status indicator LED

Battery status indicator

The headlamp provides at–a–glance battery charge status via the three–color LED below the Maxbright LED. The arrow in the photo at left indicates the location of the battery status indicator LED.

Apex Headlamp Battery Charge Status

LED colorBattery charge remaining
green>40%
yellow<= 40%
red~ 20 minutes

Documents and Manuals

  • Download the Apex headlamp User Manual (in English, Français, and Deutsch)
Waterproof LED Headlamp – Princeton Tec Apex was last modified: August 7th, 2014 by

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