Peak LED Solutions 1xCR123A 7xLED Flashlight, retail $39.95 (
Manufactured by Peak LED Solutions (
Last updated 03-17-07

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

This is the Peak LED Solutions 1xCR123A 7xLED flashlight.
It is labelled as coming from the McKinley Collection.

The Peak comes in an all brass body, and has no coating that I'm aware of. So it will develop a patina over time that can either be left as is, or polished back to shiny brass with a brass polish.

There are 7 white LEDs in the head, and a CR123A lithium camera battery inside the barrel powers them.


The light came to me ready to use, with a Battery Station CR123A lithium 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 1/4th of a turn from the fully tightened position.

To feed your light, unscrew the bezel (head) until it comes off (don't worry about losing parts or bulbs) throw it in the can, 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 CR123A cell falls out. Dispose of or recycle it as you see fit.

Drop a new CR123A 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? ;-)

I don't have battery usage information here yet. The machine is still doing a chart for another product, a second product is ahead of the Peak in the queue, and a test instrument needs to be installed in that computer - if I can open the tray on the CD-ROM drive, that is.
Since it has been asked of me, I'll also perform a beam profile analysis of this flashlight later today (06-15-04) and post the charts farther down this page.

Current consumption was measured at 370mA on my DMM's 2A scale.
This equates to approximately 52.9mA per LED, not counting any circuit consumption. If there's a circuit of any kind in there (and I believe there is), the LEDs will see less current.

The battery discharge analysis is finished; here's the chart:

Runs for 3 hours 20 minutes in regulation, then drops like it just got its head slammed in the toilet seat. Test ran for 7 hours 10 minutes total.

I used a SF123A cell (the SureFire brand CR123A in the red covering) for this test.

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

Photograph showing the business-end of the flashlight.

The brass Peak will develop a patina over time; this should have no to very, very, very little impact on the beam produced by this flashlight, because the LEDs themselves produce the vast majority of this flashlight's beam. So if the Peak's business-end becomes dirty or develops a patina, you do not have to worry about it.

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 usually whap flashlights against a steel rod to determine "smackability", but since that rod is on a table hosting a running test at the moment, smacking the Peak against that rod is likely to queer the test, and I don't want to do that. So that part of my durability testing program will have to wait.

(UPDATE: 07-07-04) I forgot all about not having done the smack test...let's take care of that now...ok, I hit it against a steel rod 12 times (5 against the tailcap, 7 on the bezel), and did not damage the flashlight in any way I can see, and it still works correctly too. Very few flashlights are damaged or destroyed by this test however; maybe I need to come up with something even more brutal.

I ran over the Peak with a 400lb electric wheelchair four times, and as I expected, no damage was found and the Peak still works properly.

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 83F (28.3C) (to simulate a user dropping it into a creek), I dried the outside off with some bungwipe, unscrewed the bezel, and there was 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) and it ought to be good as new.

There is a light knurling (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 what I believe is a 12-sided shape 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.

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; let's see if I can get a picture of it...BRB...

There we go.
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 (as seen in this photo), and pretty much aimed wherever you need light.

You can also stand the Peak on its tail end when this piece is unscrewed; you can stand it on a dresser, counter, table, or other flat surface and let the light reflected off the ceiling light up the entire room.

Here's the beam profile analysis and the beam contour analysis.

Note: Candela readings are not correct. Measures 57,100mcd (57.1cd)
in the red area at the center of the beam contour analysis.

Made with the ProMetric System, on loan from Radiant Imaging.

Spectrographic plot
Spectrometer plot of the LEDs in this flashlight.
Ocean Optics USB2000 Spectrometer on loan from WWW.TWO-CUBED.COM.

There appears to be a regulation circuit inside the bezel (head), potted in a black epoxy compound. This circuit feeds the LEDs constant power until the battery can no longer provide that power, then the intensity of the LEDs rather quickly falls off. This is your cue to change the battery. You aren't just plunged into instant darkness, as can happen with some other regulated flashlights.

Beam photo at ~12".
Measures 57,100mcd on a Meterman LM631 light meter.

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.

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: Small handheld flashlight
    LAMP TYPE: 5mm white LED
    No. OF LAMPS: 7
    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 CR123A cell
    SUBMERSIBLE: Yes, to at least 12"
    ACCESSORIES: 1 CR123A cell
    WARRANTY: 1 year


    Star RatingStar Rating

Peak LED Solutions 1xCR123A 7xLED Flashlight *

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