GP 1/2 Watt White LED Flashlight, retail $5
Manufactured by (Unknown) (URL is unknown too)
Last updated 09-03-04

This unnamed flashlight uses a 1/2 watt GP brand LED, with three AAA cells in the barrel to power that LED. The body is primarily made of aluminum; the only easily accessible non-metal areas are the lens on the business-end, and the rubber cover over the pushbutton switch on the tailcap.

The entire unit appears to be weather-resistant at minimum, and the body is knurled (texturised in a crosshatch pattern) to help aid your grip.


To use this flashlight, feed it the included batteries first (see below), and then you can go to town.

Press the button on the tailcap firmly until it clicks and then release it to turn the flashlight on. Press and release it the same way again to turn it off.

There is no momentary or signalling mode available when the flashlight is off, but you can blink it when it's on by more gently pressing the button (before it clicks).

There is no LOTC (Lock Out TailCap) function available on this flashlight; please don't look for or expect to find one.

To change the batteries in this flashlight, unscrew and remove the tailcap, and chuck it in the garbage can...O WAIT!!! YOU'LL NEED THAT!!! So just set it aside instead. ;-)

Tip the battery carriage into your hand, and remove and dispose of or recycle the three used AAA cells from it as you see fit.

Insert three new AAA cells into the carriage, orienting each cell so the flat-end (-) faces a spring for it in its chamber.

Slide the full carriage into the flashlight barrel so the spring end goes in first (pointed toward the flashlight head).

Screw the tailcap back on, and be done with it.
Aren't you glad you didn't get rid of that tailcap now? ;-)

Current usage is 245mA on the heavy duty cells that came with it, using the 2A scale on my DMM.

The flashlight appears to be weather-resistant at minimum; when I removed the tailcap, tipped out the battery carriage, and then performed that dreadful suction test, no air was admitted.
So if it's going to leak at all, it isn't going to be from the bezel (head).
Let's go do the sink test now and see what happens...BRB...ok, after submerging it in about a foot of water at 69F (20.5C) for three minutes to simulate a user dropping it into a creek, no water was found inside.

There is knurling present on the barrel, on the tailcap, and on the bezel. This helps to aid in retention (the ability to hold onto the flashlight when your hands are cold, oily, or wet), so I don't think that will be much of an issue.

Upon close examination of the business-end, there appears to be no fewer than ten (10) bond wires going into the LED die (light-emitting chip).

The beam consists of a wide spot, surrounded by a dark ring, surrounded by a brighter ring, surrounded by a dim but usable corona. This is a configuration I really haven't encountered before. The closest comparison I could even think of making would be the Brinkmann Long Life flashlight, except this flashlight is substantially brighter.

Measures 100,300mcd on a Meterman LM631 light meter.

Sample of the GP flashlight was purchased on Ebay and was received on 09-03-04.
The link I purchased it on is right here; go to the View seller's other items page after the original listing expires on 11-25-04.

UPDATE: 00-00-00



    PRODUCT TYPE: Handheld flashlight
    LAMP TYPE: 1/2 watt GP LED
    No. OF LAMPS: 1
    BEAM TYPE: Wide spot with a ring outside that
    SWITCH TYPE: Click tailcap switch on/off
    BEZEL: Metal; LED protected by a plastic optic
    BATTERY: 3xAAA cells
    WATER RESISTANT: Weather-resistant at minimum
    ACCESSORIES: 3xAAA cells
    WARRANTY: Unknown/not stated


    Star Rating

1/2 watt GP LED Flashlight *

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