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LED Tactical Flashlight w/ Focusable Beam, retail $6.99 ()
Manufactured by (Unknown)
Last updated 08-11-20

The LED Tactical Flashlight w/ Focusable Beam (probably just called a, "flashlight" on the remainder of this web page) is a small but bright (for a 1x AA cell light!) flashlight that features a high-powered LED focused by a strong convex (magnifying) lens; the beam's focus can easily be adjusted from a fairly tight spot to a very wide spot just by pulling the bezel in or out.

The flashlight also features two stage (high and low intensity) continuous light levels plus a strobe mode; all easily accessible via a generously-large orange tailcap button.

It comes in an aluminum body which has what I believe is a Type II black anodized finish.

Size of product w/hand to show scale

SIZE

To use this flashlight, install an AA cell in it first (see directly below) and THEN you'll be ready to rock.

Press the tailcap button until it clicks and then release it to turn the flashlight on in HIGH mode.
Press the tailcap button more gently (before it clicks) and then release it again to turn the flashlight to LOW mode.
Press the tailcap button more gently (before it clicks) and then release it again to turn the flashlight to STROBE mode.
Press the tailcap button until it clicks and then release it to turn the flashlight off.

To change the AA cell in this flashlight when necessary, unscrew and remove the tailcap, buy yourself an airline ticket and fly yourself plus the tailcap to Hollywood (put it in checked baggage if necessary), bring it to the set of the new movie, “Halloween V: Season of the Bitch”, have the special effects crew grind it into microscopic bits to have those itty bitty bits implanted into millions of Kotex and Tampax tampons, and...O WAIT!!! YOU'LL NEED THAT!!! So save your airfare & just set it aside instead.

Tip the tired old AA cell out of the barrel and throw it into the nearest dustbin (garbage can) or recycling box if your community has a battery reclamation program in place, and insert a new AA cell into the flashlight, orienting it so that its button-end (+) positive goes in first.

Screw the tailcap back on, and be done with it.

Aren't you glad that you didn't fly that tailcap to Hollywood where it would get ground into microscopic bits for the sake of some phoney-bologna fake Halloween movie now?

Current usage measures 780mA (high) and 210mA (low).
Both of these measurements were performed on my DMM's 10A scale.

The LED Tactical Flashlight w/ Focusable Beam appears to be durable enough that it shouldn't just fall apart through casual handling.

After administering The Smack Test (ten smacks onto a brick wall; five against the side of the tailcap and five against the side of the bezel) on it, not very surprisingly, the damned thing still worked!!!

There is the expected scuffing (gouging to the bare metal actually) on the side of the tailcap and bezel where it was struck, and no optical change was apparent.

The purpose of The Smack Test isn't to see how badly damaged the external parts of the flashlight would become; it gauges how well (or how poorly) the LED and driver circuit handles the instantaneous G-forces encountered during this test. The LED Tactical Flashlight w/ Focusable Beam handled this test surprisingly well.

Water-resistance is minimal at best; when the tailcap and bezel were removed and the barrel was suctioned, some air leakage was detected. They weren't HUGE leaks like I've seen in other flashlights so shallow-water landings should not kill it if you fish it out of the water right away, and using the light in light to light/moderate rainfall should not do it in either. And if it falls at the base of a fire hydrant and a dog (or a dingo or a wolf or an elephant) comes along and pisses on it, just take the garden hose to it or douche it off under the tap (faucet) -- good as new!
There does appear to be limited enviromental protection in the form of thin O-rings on the tailcap and on the barrel where the bezel screws in, but they appear to provide minimal protection only -- not outright waterproofing.

The barrel is texturised, so retention (the ability to hold onto the flashlight when your hands are cold, wet, oily, or soaked with diet Berries & Cream Dr. Pepper, milk, bird $#¡7, mud, tranny fluid, donkey pee, etc.) should not be an issue.

The bezel is crenelated (scalloped); the major benefit I see here is that if the flashlight is set face-down while it is still on, you'll be able to easily see that it's still on so that you can get it shut down and not waste the battery.

The light also stands on its tailcap quite stably, so you can use it as an electronic "candle" by having its light bounce off the ceiling and subsequently illuminating the entire room that way.

Beam terminus photograph on a wall at 12" (narrow focus).
Measures 1,260,000mcd (narrow) and 37,800mcd (wide) on an Amprobe LM631A light meter.

Beam terminus photograph on a wall at 12" (wide focus).

Beam terminus photograph on a wall at ~8 feet (narrow focus).

Beam terminus photograph on a wall at ~8 feet (wide focus).

Beam terminus photograph on a wall at ~8 feet (narrow focus and zoomed to show beam details; as you can see, this is a magnified image of the LED's die {light-emitting region}).

A second beam terminus photograph on a wall at ~8 feet (narrow focus and zoomed to show beam details; as you can see, this is a magnified image of the LED's die {light-emitting region}).

Spectrographic analysis of the LED in this flashlight.

Spectrographic analysis of the LED in this flashlight; spectrometer's response narrowed to a band between 435nm and 455nm to pinpoint native emission peak wavelength, which is 443.410nm.

The raw spectrometer data (tab-delimited that can be loaded into Excel) is at zoom3.txt

USB2000 Spectrometer graciously donated by P.L.

A beam cross-sectional analysis would normally appear here, but the ProMetric System
that I use for that test was destroyed by lightning in mid-July 2013.

TEST NOTES:
Test unit was purchased on Ebay on 04-29-20 and was received on the afternoon of 05-04-20.

UPDATE: 00-00-00

PROS:
Very bright for a single-cell light
Reasonably durable construction
Focusable beam with minimal hassle
Battery it uses is readily available and relatively inexpen$ive
Crenelated bezel makes it easy to tell if it is inadvertently left on

NEUTRAL:

CONS:
Water-resistance could be greater
Large current consumption in HIGH mode bodes poorly for battery life

Unknown

Small focusable flashlight

High-powered phosphor white LED

Adjustable from narrow spot to very wide spot w/no corona

N/A

Pushbutton on/mode change/off tailcap switch

Aluminum

Crenelated; lens & LED recessed into it

1x AA cell

780mA (high), 210mA (low

Light sprinkle-resistance at maximum (it could handle being douched off under the tap if an animal uranates on it)

None

360mm L (wide focus) 383mm L (narrow focus) x 99mm D

65g (2.290 oz.) incl. AA cell

Unknown -- but probably an Oriental country

Unknown/not stated

LED Tactical Flashlight w/ Focusable Beam *

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