ETG Strobe, retail TBA (
Manufactured (or sold) by ETG Technology (
Last updated 01-28-11

The ETG Strobe is a type of LED "rave light". It features a yellow and and a blue LED, plus an IC that flashes the two rapidly in a predetermined sequence.

It is equipped with a tiny but very powerful magnet that allows you to affix the tiny light to various places, including clothing, body parts like lips or ears; or to ferrous surfaces like bicycles and metal components of automobiles.


To use the ETG Strobe, just give it a gentle but firm clockwise twist. Careful, not TOO hard. Turning it off is just as easy; twist the other way until it goes off.

It comes equipped with a small, thin disk magnet; you can use this to affix the light to clothing, thin body parts (earlobes work especially well), or other thin surfaces. The magnet will "suck" the body of the light through a surprisingly thick material; they're quite powerful. A second magnet is built into the bottom of the light; this gives it that extra grab.

Because this light use powerful magnets, you should not use or carry one in the same pocket as your bank card or other card with a black or brown magnetic stripe on the back, and you should not bring it within a foot of computer diskettes, computer hard drives, music cassettes, cassette players or walkmans; or video tapes & players. These lights will also cause discoloration of the picture on TV screens and computer monitors if brought to within 2" or so of the screen or placed on top of the set, so you should not store or leave these things on top of the TV between uses. When not being used, sticking them to a larger piece of ferrous metal, such as the refrigerator or a metal doorframe, greatly reduces the emitted magnetic field so your bank card won't become scrambled if you happen to walk by the light with your wallet in your hands. :)

To change the batteries in your ETG Strobe, unscrew the halves to get at the batteries. The magnet built into the bottom of the case (not the disc magnet you can take off) tends to make them stick, so your best strategy for removing them is to fight fire with fire: remove the disc magnet from the outside, and use it to "suck" the batteries out of the battery chamber.

Reload the chamber by putting the button cells in with the button side facing upwards, and screw the halves back together. The magnet inside the battery chamber will try to grab onto the first cell pretty hard, so just be sure it goes in button-side facing up, and use a pen or fingernail to get it reasonably centered inside. Mutual magnetism will grab the other(s) but not as strongly; though strong enough to prevent them from falling out by themselves.

IMPORTANT: A white, collar-like paper insulator should be present in one of the two halves; if it is missing, the batteries can short out against the inside of the battery holder and your light will not work properly, if at all. If this collar is missing or later becomes lost (e.g. it falls to the floor unnoticed and then falls prey to the hungry, hungry vacuum cleaner), a new one can easily be fashioned using any ordinary thin paper, such as from a grocery store receipt or a school notebook.

Screw the two halves of the light back together, and back off a bit once it springs to life.

If you love shiny, blinky things, you'll love the ETG Strobe.

Using the magnetic disk, clip it to clothes, earlobes, etc., or stick it to bicycle or car frames (any iron or steel surfaces) with the same magnet, and turn it on when you really want to light up that next party or rave you go to.

The ETG Strobe produces a wide, 180 degree swath of light. Although it isn't meant to be used as a flashlight, you could use it as one if the need comes up.

The strobe effect appears to be a number of blue flashes, a brief pause, a couple of yellow flashes, then another brief pause, a few blue flashes, a brief pause, and a yellow flash. Lather, rinse, repeat - just like it says on the back of the shampoo bottle. These flashes are pretty fast, so I can't get an accurate count on them.

I don't think the ETG Strobe is waterproof, so be careful at the uranator or toilet so that it doesn't fall in when nature calls.

Blue flash.

Yellow flash.

Spectrographic plot
Spectrographic analysis of the blue LED in this product.

Spectrographic plot
Spectrographic analysis of the yellow LED in this product.
USB2000 spectrometer graciously donated by P.L.

This video on YourTube shows the product doing what it does best: FLASHING.
Shot with the Canon Powershot G3 Digital Camera.

This clip is approximately 4.577434783422 megabytes (4,761,794 bytes) in length; dial-up users please be aware.
It will take no less than twenty two minutes to load at 48.0Kbps.

Same thing as above; shot with the Polaroid x530 Digital Camera this time.

This clip is approximately 15.006783456374 megabytes (15,252,964 bytes) in length; dial-up users please be aware.
It will take no less than seventy five minutes to load at 48.0Kbps.

I don't know exactly WHEN the test sample was received; suffice it to say it was quite a ways back (possibly as early as 2001!!!), and I apologise for the delay in getting it on my website.
Today is 01-27-11 (when I found the product while looking for something else that required a spectrographic analysis), if it means anything.

UPDATE: 00-00-00

Unique, novel use of LED technology
Magnet furnished, allowing you to "stick" it to almost any ferrous surface

Magnets are strong -- can erase diskettes, cassettes, and bank cards

    PRODUCT TYPE: Novelty magnetic LED lite
    LAMP TYPE: Chip-type LED, blue & yellow
    No. OF LAMPS: 2
    BEAM TYPE: Diffuse, around 180 degree directivity
    SWITCH TYPE: Twist casing on/off
    BEZEL: LEDs protected by a clear epoxy bubble
    BATTERY: 3 AG3 button cells
    CURRENT CONSUMPTION: Unknown/unable to measure
    WATER RESISTANT: Splash-resistant
    SUBMERSIBLE: Probably not
    ACCESSORIES: 3 AG3 button cells, neodymium disk magnet
    WARRANTY: Unknown/TBA


    Star Rating

ETG Strobe (2) *

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