Skull & Crossboans w/ Bright Eyes, retail 50˘
Manufactured by (Unknown)
Last updated 06-03-13

This is a novelty keychain attachment that looks like a skull & crossbones; what earned it a place on this website are the much brighter-than-expected red LED eyes.

It appears to be disposable; there does not appear to be any way to change the batteries in it.

 Size of product w/hand to show scale SIZE

Affix the Skull & Crossbones w/ Bright Eyes to your keyring/keychain using the furnished split ring.

On the back of the unit, you'll see a generously-sized slide switch,
Slide this switch upward and the bright red eyes will glow; release the switch and they'll turn off.
This is momentary mode.
Slide the switch a little farther forward -- it'll stay in place and the LED swill stay illuminated; slide the switch back downnward to neutralise the keychain.
This is continuous (hands-free) mode.

This keychain accessory appears to be disposable; there is no obvious way to change the batteries in it when they poop out. So this section of the web page will not be necessary.

This was intended to be a disposable product, so even if you do manage to break it, just throw it away and go get another one. At 50˘ apiece, it certainly won't break the bank.

Because this is a disposable keychain accessory and not a flashlight meant to be thrashed and abused, I won't try to drown it in the toilet, smash it against a concrete sidewalk, throw it against a wall, stomp on it, sit down hard on it, or otherwise abuse it. So this portion of the web page will be more bare than this section of the web page on a page about a flashlight.

Photograph of the unit's glowing eyes.

Spectrographic analysis
Spectrographic analysis of the LEDs in this product.

Spectrographic analysis
Spectrographic analysis of the LEDs in this product; spectrometer's response narrowed to a band between 632nm and 642nm to pinpoint emission peak wavelength, which is 637.620nm.

The raw spectrometer data (comma-delimited that can be loaded into Excel) is at

USB2000 Spectrometer graciously donated by P.L.

Test unit was purchased at a Safeway in Federal Way WA. USA (from a vending machine in a rack with similar machines including gumball machines) on the morning of 06-01-13.

UPDATE: 00-00-00

Significantlybrighter than I expected

Definitely has a cheap or "chintzy" feel to it

Disposable -- that means you're throwing away a perfectly good LED when the batteries go to pot

    PRODUCT TYPE: Light-up keychain accessory
    LAMP TYPE: 3mm diffused red LED
    No. OF LAMPS: 2
    BEAM TYPE: Wide flood
    SWITCH TYPE: Slide on/momentary/off
    CASE MATERIAL: Plastic
    BEZEL: N/A
    BATTERY: 2x unknown-type button cells
    CURRENT CONSUMPTION: Unknown/unable to measure
    WATER- AND URANATION-RESISTANT: Light splatter-resistance at maximum
    ACCESSORIES: 2x button cells
    SIZE: 10mm T x 23mm Dia.
    WEIGHT: 7.10g (0.250 oz.) incl. batteries
    COUNTRY OF MANUFACTURE: Unknown; though presumably China, Taiwan, or Hong Kong
    WARRANTY: Not stated


    Star Rating

Skull & Crossbones w/ Bright Eyes *

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