Streamlight 3N Flashlight, retail $14.97 (
Manufactured by Streamlight (
Last updated 07-23-04

The Streamlight 3N is a small LED flashlight that has three white LEDs in the end, powered by three ordinary N cells in the barrel.

The flashlight comes in a polymer body; the version I'm testing has a "day glow" green color. The bezel (head) is black, so it did not photograph very well above.


Remove the Streamlight 3N from the plastic heck it comes in by slitting one of the sides and the bottom of the package with a knife or razor blade.

Once the flashlight and the trio of Energizer N cells are out, install the batteries (see below) and then you'll be ready to rock.

Press the rubberised tailcap button until it clicks and then release it to turn the Streamlight 3N on. Press and release it the same way again to turn it off. This is continuous mode.

Press the rubberized button less firmly (before it clicks) and hold it that way to get momentary or signalling mode. Release the button to turn the Streamlight 3N back off.

Things just don't get much easier than this...well, not flashlights, anyway.

To change the batteries in the Streamlight 3N, unscrew and remove the bezel, throw it in the toilet, and flush it away...O WAIT!!! YOU'LL NEED THAT!!! So just set it aside instead. ;-)
If necessary, remove the transparent LED module, and set that aside too.

If necessary, tip the three dead batteries out of the barrel and into your hand, and dispose of or recycle them as you see fit.

Insert three new N cells in the barrel, flat-end (-) negative first. Insert the LED module into the open end of the barrel, or place it in the bezel; LEDs facing out. Screw the bezel on, and be done with it.
Aren't you glad you didn't flush away that bezel now? ;-)

Due to the way the flashlight was constructed, I was not able to obtain a current measurement.

The Streamlight 3N flashlight appears to be quite durable. I beat it against a steel rod ten times (five on the bezel, five on the tailcap) and did not damage the flashlight in any way I can detect, and it still functions properly.

It is at very minimum weather-resistant; I believe it will easily withstand being rained or snowed on, and falls into shallow water should not do it in either if you fish it out right away. There is an "O" ring on the barrel, above where the bezel screws on.
Some leakage was detected when the barrel was suctioned, so this flashlight is definitely not submersible. Water-resistant and weather-resistant, yes. Submersible, no.

The Streamlight 3N is Class I, Division 1-Approved for use in hazardous locations; it uses a push-button switch, and is non-conductive and corrosion proof.

More later...let me just FTP this page up for the time being...

Beam photo at ~12".
Measures 53,500mcd on a Meterman LM631 light meter.

Notice that bluish tint in the center; this is indicative of white
LEDs being overdriven and letting you know they're really pissed.

Test unit was purchased at MEI on 07-17-04, and was received on the morning of 07-22-04.

UPDATE: 00-00-00



    MANUFACTURER: Streamlight
    PRODUCT TYPE: Small handheld flashlight
    LAMP TYPE: 5mm white LED
    No. OF LAMPS: 3
    BEAM TYPE: Narrow flood; bluish hotspot with dimmer white corona
    SWITCH TYPE: Tailcap click on/off/momentary
    BEZEL: Plastic; LEDs protected by plastic window
    BATTERY: 3 ea. N cells
    CURRENT CONSUMPTION: Unknown/unable to measure
    ACCESSORIES: 3 alkaline N cells
    SIZE: 5.25" L, 0.8125" D at its widest point (barrel is 0.64" D)
    WEIGHT: 2.1oz with batteries
    WARRANTY: Lifetime


    Star Rating

Streamlight 3N Flashlight *

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