238xLED 3xD FLASHLIGHT

238xLED 3xD Flashlight, retail $24.99 ()
Manufactured by (Unknown)
Last updated 09-06-07




This flashlight has an amazing 238 3mm white LEDs in its head, and is powered by three D cells in its aluminum barrel.

The LEDs are protected by a transparent plastic window (or "lens" if you prefer that term, even though it does not modify the light in any manner).

I have not tested or seen a flashlight with this many LEDs until testing a 128 LED flashlight ~9 months ago.


SIZE



Press the button on the barrel rather firmly until it clicks and then release it to turn the flashlight on.

Do the same thing again to turn the flashlight off.

There is no momentary or signalling mode available in this flashlight when it's off, however you can blink the flashlight while it is on by partially depressing the button. If you don't mind the backward or reverse feeling of this, you can blink the flashlight this way if necessary.



To change the batteries in this flashlight, unscrew and remove the tailcap, carry it outside, and throw it as hard as you can into the nearest open-pit zinc mine so the excavators will run over & flatten it...O WAIT!!! YOU'LL NEED THAT!!! So just set it aside instead.

Tip the open end of the barrel in your hand, so that the three used D cells fall into your hand or onto your feet (ouch!!!).
Dispose of or recycle them as you see fit.

Insert three new D cells into the barrel, orienting each D cell so its button-end (+) positive goes in first.

Screw the tailcap back on, and be done with it.
Aren't you glad you didn't huck that tailcap into the mine now?

Current usage measures 1,783mA (1.783A) on my DMM's 4A scale.
This equates to ~7.491mA per LED, so they are NOT AT ALL overdriven.




Photograph of the bezel, showing the 238 LEDs.

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 (I beat the snot out of it {or "the living tweedle"out of it}) - ten whacks against the concrete floor of the front porch (my sister is sleeping on the couch next to the patio door; all that racket (me beating the urine out of a poor, defenseless flashlight) against the floor of the patio would have awakened her); five whacks against the side of the tailcap and five whacks against the side of the bezel), and found the expected damage There is some minor gouging to the bare Metalflamedramon - er - the bare Metalvenommyotismon - um that's not it either...the bare Metalcherrymon...er...uh...wait a sec here...THE BARE METAL (guess I've been watching too much Digimon again! Now I'm just making {vulgar term for feces} up!!! ) on the sides of the tailcap and bezel where it was struck. No optical or electrical malfunctions were detected. I also scraped a spot on the barrel to the bare metal with the blade of a folding knife; this tells me that the finish is a clear Type II anodizing - not the HA-III found on some of the high-end flashlights.

Would I really try to cut up a brand spanken new flashlight I paid perfectly good money for?
You bet your sugar-coated toilet muscle (sweet patootie) I would, if it's in the name of science.

When I unscrewed the tailcap, relieved the barrel of its batteies, and then performed that dreadful suction test on it, significant air leakage was detected. There is an O-ring on the tailcap, but not on the bezel (head), so is not water-resistant. Therefore, water, milk, diet vanilla Pepsi, cold (or hot) coffee, urine, ice cold fizzy root beer, disposable douches, disposable enemas, tranny fluid, gasoline, diesel, jet fuel, brake fluid, motor oil, or other liquids could get inside. So please try not to drop it in creeks, rivers, ponds, lakes, oceansides, docksides, snowbanks, puddles of giraffe pee, tall cold glasses (or short lukewarm glasses) of milk, slush piles, mud puddles, tubs, root beer floats, toilet bowls, cisterns, sinks, cups of coffee (hot *OR* cold), fishtanks, dog water dishes, old yucky wet mops, wall-mounted porcelain urinators, leaky water heaters, busted garden hoses, or other places where water or water-like liquids might be found. And you'll probably want to cover it up or otherwise get rid of it (such as by putting it in a pocket or bag) if you need to carry it in rainy or snowy weather.

A little rain or snow probably wouldn't hurt it though, so you need not be too concerned about using it in moderately bad weather.

If it fell in water and you suspect it got flooded, disassemble it as you would for a battery change, dump out the water if necessary, and set the parts in a warm dry place for a day or so just to be sure it's completely dry inside before you reassemble and use it again.

If it fell into seawater, got thrown into a glass of milk, if it fell in a root beer float, if somebody squirted a Massengill brand post-menstrual disposable douche or a Fleet brand disposable enema at it (and hit it with the douche or the enema), or if somebody or something peed on it, rinse all the parts out with fresh water before setting them out to dry. You don't want your flashlight to smell like seaweed, sour milk, flowers, fresh butts, or rotten piss when you go to use it next. Besides, salt (from seawater, disposable douches, disposable enemas, or urination), lactic acid (from moo juice), glycerol (from antifreeze), or sugar (from root beer & ice cream) can't be very good for the insides.

There is a rubber sleeve on the barrel with shaped indentations in it for your fingers to fit. This is not like knurling, but it does help in aiding retention. The entire flashlight also has a series of very fine circumfrential grooves machined into it; these grooves also help somewhat in aiding retention.

The beam is smooth - but with 238 LEDs, it damn well better be.


Photograph of the front, showing the LEDs illuminated.

The LEDs all appear to be well-matched for intensity and tint.
Lack of waterproofness will knock some points off its final rating , but the even, consistent tint of the LEDs will add a few points back on!!!

The flashlight can be stood on its tail to use as an electronic "candle", beaming its white goodness on the ceiling and allowing the reflected light to illuminate the entire room hands-free.

Inside the illuminator head, there are two large (5 watt?) resistors connected in parallel; the total resistance is 0.25 ohms with a tolerance of 5%. The color bands are: green, black, silver; with a gold tolerance band.
The actual resistance of each resistor is 0.50 ohms, but remember, there are two of them connected in parallel.



Beam photograph on the test target at 12".
Measures 296,000 mcd on a Meterman LM631 light meter.

The overall light output is fairly high; the large emitting area & small
detector size plus the wide viewing angle causes a false low reading.



Beam photograph on a wall at ~10'.

Those rectangular graphic things in the upper left quadrant of this photograph are marquees from:

Nintendo ''R-Type''
Super Tiger...er...uh...Konami ''Super Cobra''
Midway ''Omega Race''
Sega ''Star Trek''
Williams ''Joust''
Venture Line ''Looping''
Universal ''Mr. Do!'s Castle''
Jaleco ''Exerion''
Gremlin/Sega ''Astro Blaster''
Atari ''Tempest''
Gottlieb ''Q*bert''

upright coin-op arcade video games from the 1980s.

That graphic toward the right is:
A "BIG SCARY LASER" poster sent by www.megagreen.co.uk


And that clock to the right of the "Big Scary Laser" poster is an Infinity Optics Clock.

I don't normally provide beam photographs on a wall with non-Luxeon
flashlights, but this flashlight is bright enough for this type of photograph.


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


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



TEST NOTES:
Test unit was purchased on Ebay on 09-01-07, and was received on 09-05-07.


UPDATE: 00-00-00



PROS:



CONS:



    MANUFACTURER: Unknown
    PRODUCT TYPE: LED flashlight
    LAMP TYPE: 3mm white LED
    No. OF LAMPS: 238 (!)
    BEAM TYPE: Wide spot w/wide corona
    SWITCH TYPE: Pushbutton on/off on barrel
    CASE MATERIAL: Aluminum
    BEZEL: Metal; LEDs protected by plastic window
    BATTERY: 3xD cells
    CURRENT CONSUMPTION: 1,783mA
    WATER RESISTANT: Yes, splatter-resistant at minimum
    SUBMERSIBLE: No
    ACCESSORIES: None
    SIZE: 3.45"D (head), ~11.15" L
    WARRANTY: Not stated/TBA

    PRODUCT RATING:

    Star Rating





238xLED 3xD Flashlight *






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