1xAAA 1xLED Flashlight, retail $9.99 (http://store.advancedmart.com...)
Manufactured by (Unknown)
Last updated 03-24-10

The 1xAAA 1xLED flashlight (for lack of a better name, because a better name really wasn't furnished on the package) is just that: a flashlight that operates from one AAA cell and has one 5mm white LED in its business-end.

It comes in a knurled (texturised) alloy steel body, and has a small split ring on its tail so you can affix it to keychains or lanyards.


To use the flashlight, you will first want to feed it with a single "AAA" cell.

Getting light is as easy as turning the head clockwise (as if tightening it) until it lights up; turn it the other way to plunge yourself back in darkness.

This flashlight comes with a small split ring attached to the tail. This is meant to be attached to larger keyrings, like what your house & car keys are probably already on; and for attachment to a lanyard to hang it around your neck or around a nail or tree branch.

The knurled surface makes the light easy to grip and use.

To change the battery in this flashlight, unscrew the head until it comes off, throw it in the {vulgar term for feces}bowl, and flush it away...O WAIT!!! THAT'S THE GOOD PART!!! So just set it aside instead.

Tip the used AAA cell out of the barrel if necessary, and dispose of or recycle it as you see fit.

Drop a new AAA cell in the barrel, flat-end (-) negative first, then screw the head back on.
Aren't you glad you didn't flush away that head now?

Due to the way the product was constructed, I am not able to furnish a current usage measurement for you.

Photograph of this flashlight's front end, showing the LED.

The flashlight appears to be reasonably sturdy. Ordinary flashlight accidents should not be enough to do it in. I administered the smack test on it (ten whacks against the corner of a concrete stair; five whacks against the side of the tailcap and five whacks against the side of the bezel), and could not see any damage at all. No optical or electrical malfunctions were detected either.

I have no way to test waterproofness other than throwing it in the toilet. There is an O-ring on the bezel that seals the bezel and barrel when the flashlight is assembled, so it *should not* leak at very minimum in rainy or snowy weather.

(Edit 09-18-05): I dropped this flashlight in approximately 12" of water at 70F (21.1C) for approximately one minute (to simulate a user dropping it in a creek), dried off the outside with some bungwipe, and examined its interior. No water was found. So yes, splash- and weather-resistant at minimum. And submersible to shallow depths too if you fish it out right away.

There is knurling (diamond-shaped cross-hatched texturising) on the barrel and on the bezel, so retention (the ability to hold onto the flashlight when your hands are cold, wet, or oily) shouldn't be much of an issue.

The light output by this flashlight is a very slightly cool white, with no pink, yellow, blue, purple, or "rotten porpoise urine green" tint in the beam. I know I usually only say this with flashlights that use a Luxeon LED, but the beam of this flashlight is smooth and even, with no blue hotspot typically found in white LED flashlights that use a single 5mm white LED.

Significant battery rattle is present even when the unit is only lightly shaken; there is no foam battery rattle arrester like there is in other single-AAA single-LED flashlights.

Beam photograph at ~12".
Measures 30,500mcd on a Meterman LM631 light meter.

Spectrographic analysis
Spectrographic analysis of the LED 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 sample was purchased on Ebay, and was received on 09-12-05.

Product was made in China. A product's country of origin really does matter to some people, which is why I published it on this web page.

UPDATE: 03-24-10
I have given this light (plus one other) to my aunt; therefore I no longer have it at my disposal for future analyses or comparisons -- and the dreadful "" icon will now be appended to its listings on this website.



    PRODUCT TYPE: Small LED flashlight
    LAMP TYPE: 5mm white LED
    No. OF LAMPS: 1
    BEAM TYPE: Medium spot with soft fall-off to perimeter
    SWITCH TYPE: Twist bezel on/off
    BEZEL: Metal; LED inset in conical depression
    BATTERY: 1xAAA cell
    CURRENT CONSUMPTION: Unknown/unable to measure
    SUBMERSIBLE: Yes, to shallow depths for short periods only
    ACCESSORIES: Small split ring
    WARRANTY: Unknown/not stated


    Star Rating

1xAAA 1xLED Flashlight * http://store.advancedmart.com...

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