Peak LED Solutions 1xAA 5xLED Flashlight, retail $39.95 (
Manufactured by Peak LED Solutions (
Last updated 03-16-08

(IMPORTANT: The Peak LED Solutions website is currently under construction)

The Peak LED Solutions 1xAA 5xLED flashlight I'm presenting to you today is a prototype; it features a gold colored body. I don't know if there's a protective coating on there or not. There are 5 white LEDs in the head, and a single AA cell inside the barrel powers them.

This flashlight is labelled as coming from the Kilimanjaro Collection - flashlights that run from a single AA cell and have one, three, or five LEDs.


The light came to me ready to use, with an Energizer lithium L91 AA cell already installed.

To turn the light on, twist the bezel (head) clockwise (as if tightening it). And to turn the light off, turn the bezel counterclockwise (as if loosening it) about 1/4 of a turn from the fully tightened position.

To feed your light, unscrew the bezel until it comes off (don't worry about losing parts or bulbs) throw it in the toilet, and flush it away...O WAIT, YOU'LL NEED THAT!!! So just set it aside instead. ;-)

Tip the barrel into your hand so the used AA cell falls out. Dispose of or recycle it as you see fit.

Drop a new AA cell in the barrel, flat-side (-) negative first, so the button-end is showing. Screw the bezel back on, and you're finished. Oh, and unscrew that bezel slightly when your Peak springs to life. You don't want to waste a brand spanken new battery ya know.
Aren't you glad you didn't flush away that bezel now? ;-)

Measures 277mA on the Energizer L91 lithium cell it was supplied with.

As of the morning of 06-20-04, I started a battery discharge analysis of this flashlight. About 20 minutes in, I somehow managed to queer the test, so I installed another Energizer L91 lithium cell in the flashlight, and started another. About 1 minute in, I ruined that test too, so I started a third. Third time's a charm, right?
{imitating Marge Simpson}Ehhh, doodlebugs!!!
{imitating Ned Flanders}Son of a diddly!!!!!
The third test got spoiled about an hour in, and my non-contact IR thermometer is no longer working (the flashlight felt hot, so I tried to measure its temperature and had no success). So after it cools, I'll pop in another new cell and start the test again.
(Edit, the next day)
There doesn't seem to be anything wrong with the thermometer; I guess it just doesn't like the gold colored finish on this flashlight.

I'll post a chart here when it's ready.

And here's the chart. I used an Energizer E2 L91 lithium cell for this test; as this is what was supplied with the flashlight. Runs for 2 hours 40 minutes to the 50% intensity point, and 4 hours 20 minutes overall.

Unit can be turned off and back on even in this nearly discharged state.

Photograph showing the business-end of the flashlight.

The Peak is very durable, and ordinary flashlight accidents (dropping it, whapping it against a doorframe or car door in alarm, sitting on it, stepping on it, sucking it up the vaccume cleaner, etc.) will not damage it. I whapped it against a steel rod ten times (five on the barrel, and five on the bezel) and did not damage it in any way that I can detect.

The Peak has an O-ring that seals the bezel against the barrel, so it should be fully weatherproof, and maybe even submersible to at least a foot or two. Let's try the bathroom basin test and see what happens...BRB...ok, after submerging it for three minutes in about a foot of water at 62F (16.6C) (to simulate a user dropping it into a creek), I dried the outside off with some toilet paper, unscrewed the bezel, examined the flashlight, and found no water inside. So yes, weatherproof and submersible to at least 1 foot.
I also tried suctioning the bezel by itself to be sure no leakage occurred around the LEDs, and no leakage was detected.
If it falls into water, just shake it off and keep going. If it falls into seawater or if something pees on it, douche it off with fresh water, shake it off (or dry it off) when you get a chance and it ought to be as good as new.

There is a light knurling (diamond-shaped texturising) present on the barrel of the Peak; this helps to aid in retention (the ability to hold onto the flashlight when your hands are cold, wet, or oily). This knurling is not aggressive (sharp), so it won't cut a hole in your pocket if you carry the Peak that way. The bezel (head) has 6 flats machined into it. Although this does not function as an anti-roll device, it does help a bit to aid in your grip when you turn the flashlight on and off.

This Kilimanjaro Collection flashlight came with a velet-like drawstring storage pouch, black in color. You can store the flashlight in this pouch if you wish; it is an elegant accessory for an elegant gold flashlight.

The Peak is equipped with a small split ring on its tail, so you can affix it to a keychain and carry it that way if you desire.

The very tail end is removeable (by unscrewing it), to allow the flashlight to be affixed to a large and sturdy magnetic clamp assembly. This assembly was included; see the photograph directly below:

This clip has a large, heavy-duty clamp with very strong jaws, a large ceramic ring magnet in its base (under that shiny metal thing at the bottom), and a flexible arm that can be positioned pretty much anywhere.
Once the flashlight's very tail end is unscrewed and removed, the flashlight can then be screwed onto the end of the red arm, and pretty much aimed wherever you need light. In this picture, a 1xCR123A 7xLED brass Peak is shown. But this flashlight fits on the arm the exact same way.

You can also stand this flashlight on its tail for ceiling illumination when the tailpiece is removed. This is a handy feature to have in almost any flashlight; I'm glad it was included on this one.

Beam photograph at ~12".
Measures 47,500mcd on a Meterman LM631 light meter.

Spectrographic plot
Spectrographic analysis of the LEDs in this flashlight.
USB2000 spectrometer graciously donated by P.L.

ProMetric analysis
Beam cross-sectional analysis.
Image made using the ProMetric System by Radiant Imaging.

Test unit was sent by MJ of Peak LED Solutions along with three of their other flashlights and a magnetic clamp thingie, and was received on 06-14-04.

Here's an example of the retail packaging these flashlights come in.

This is a prototype unit, and will not be rated like a production flashlight.

From a posting on Candlepower Forums by MJ:
At this time we are working on a resolution for the battery rattle. If you would like you can send the unit back to us to be replaced or refunded. The resolution to this problem should be available with in 2 weeks as soon as this is available we will also be sending this out to all customers prior to this being done.
This was posted on 06-17-04.

UPDATE: 00-00-00

Durable construction
Waterproof, submersible to at least 12"
Knurled, to aid in retention
Tailcap can be removed to allow flashlight to stand on-end

Some battery rattle is present

    MANUFACTURER: Peak LED Solutions
    PRODUCT TYPE: Keychain flashlight
    LAMP TYPE: 5mm white LED
    No. OF LAMPS: 5
    BEAM TYPE: Medium spot, with dimmer corona
    SWITCH TYPE: Twist bezel on/off
    BEZEL: Metal; LEDs recessed into individual cells to help prevent damage
    BATTERY: 1 AA cell
    SUBMERSIBLE: Yes, to at least 12"
    ACCESSORIES: 1 AA cell, velvet-like drawstring bag
    WARRANTY: 1 year


    This is a prototype unit, and will not be rated like a production flashlight.

Peak LED Solutions 1xAA 5xLED Flashlight *

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