LED DIVING LIGHT


LED Diving Light, retail $14.50 (www.amondotech.com...)
Manufactured by (Unknown)
Last updated 08-08-08




The LED Diving Hand Torch (hereinafter, called a "diving light" or just a "flashlight), model LD-34, is an LED flashlight that uses four Nichia 5mm white LEDs at the base of a silvery "reflector", uses four AA cells (included) to power those LEDs, and is water-resistant and even submersible to 30 meters (approximately 100 feet).

It comes in a plastic body, predominantly colored a fluorescent yellow-green, and has a wrist strap affixed to its tail so you would be less likely to lose it.


SIZE



To use the flashlight, install the included batteries first (see the "Feeding Time" section directly below), and then you can go to town.

Turn the bezel (head) clockwise (as if tightening it) to turn the flashlight on. Turn the bezel counterclockwise (as if loosening it) to turn the flashlight off.

Yes, it really is as easy as that.



To change the batteries when necessary, unscrew and remove the bezel (head), throw it to the ground, look at it all funny, and stomp on it with old or used football shoes...O WAIT!!! YOU'LL NEED THAT!!! So just set it aside instead.
Tip the LED module out, throw it in the {vulgar term for feces}bowl, and flush it away...O WAIT!!! YOU'LL NEED THAT TOO!!! So just set it aside instead.

Tip the used AA cells into your hand, and dispose of or recycle them as you see fit.

Insert two of the four new AA cells in the barrel, orienting them according to the polarity markings on the inner surface of the barrel, and insert the other two AA cells the other way.

Place the LED module back in the barrel, turning it until it drops down. Screw the bezel back on, and unscrew it a bit when the flashlight springs to life.
Aren't you glad you didn't stomp on that bezel and flush away that LED module now?

Unable to measure current due to the way the flashlight is constructed.



This flashlight appears at least fairly durable, and it is. When I performed that terrible smack test on it (ten whacks against the corner of a concrete stair: 5 smacks against the side of the bezel and 5 smacks against the side of the tailcap), no visible damage was found. No optical or electrical malfunctions were detected either.

The flashlight is weather- and water-resistant. It is rated to be submersible to 30 meters (~100 feet). So you need not be concerned about using it in rain or snow, and water landings will not do it in either. And if the dog pisses on it, just take the garden hose to it, dunk it in the well (well, you really don't want to do that), or douche it off under the faucet - good as new.

There are platinum catalyst pellets somewhere in the LED module; these help to absorb hydrogen vented by the batteries so the flashlight would be much less likely to blow up. These pellets are commonly used in diving lights because they are inherently sealed when assembled and cared for properly.

One thing that I noticed right away about this flashlight is that it includes a tube of O-ring grease - this should be included with all dive-rated flashlights.

The flashlight can be very carefully stood on its tail for ceiling bounce light when necessary. The tail isn't quite perfectly flat, but has a very slight convex shape to it, so if needed, you can balance it in the center of a full toilet roll and stand it up that way.

Because it is inexpensive, durable, and uses a common battery type (AA cells), you can use this flashlight just about anywhere a medium flood of light is required, and you can store it in a drawer, box, toolkit, or just about anywhere else you can think of that it will fit.

There is a black, rubbery, texturised band on the bottom of the barrel, and the bezel (head) is made of the same material and is texturised, so holding onto the flashlight and activating/deactivating it is a lot easier to do than if the barrel and bezel were smooth.

One thing I noticed rather quickly is that the "twist bezel" action is rather erratic; when the flashlight is turned off, the LEDs still flicker when the flashlight is shaken or manhandled. There is also significant battery rattle even when the flashlight is on, and it occurs very readily even with normal handling. So this isn't a flashlight you'd want to use in a covert situation.



Beam photograph at 12"
Measures 75,400mcd on a Meterman LM631 light meter.
This really isn't too bad a value for a little four-banger.



Photograph of beam, overexposed by two stops to show the four "spokes" in its corona.


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



TEST NOTES:
Test unit of this flashlight and 17 other products were sent by A.L. of Amondotech and were received late in the morning of 07-11-05.


UPDATE: 00-00-00



PROS:
Includes O-ring grease - makes me wonder why it isn't included with other diving lights



CONS:



    MANUFACTURER: Unknown
    PRODUCT TYPE: Diving light
    LAMP TYPE: 5mm white LED
    No. OF LAMPS: 4
    BEAM TYPE: Narrow flood with 4-spoked corona
    SWITCH TYPE: Twist bezel on/off
    BEZEL: Plastic; LEDs and reflector protected by plastic window
    BATTERY: 4xAA cells
    CURRENT CONSUMPTION: Unknown/unable to measure
    WATER RESISTANT: Yes
    SUBMERSIBLE: Yes, to 30 meters (~100 feet)
    ACCESSORIES: 4xAA cells, carrying strap, O-ring lubricant
    WARRANTY: Unknown/not stated

    PRODUCT RATING:

    Star Rating





LED Diving Light * www.amondotech.com...






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