Light-Up "Star" Ring, retail 99¢*)
Manufactured by (Unknown) for Amscan (
Last updated 04-24-13

The Light-Up "Star" Ring is a ring featuring a blue plastic "star" that hosts a dirty little secret: A white LED inside the "star" turns on and causes the "star" to light up a pale blue when you twist the "star".

It is intended to be used at 4th of July parties, fireworks shows, or other patriotic events where the lighting is subdued.

The ring portion (the part that fits your finger); although made of hard plastic, has an open bottom so it should accomodate a somewhat narrow range of finger sizes (it fits comfortably on my pinkie finger, but it's too tight to fit my ring finger).

It appears to be disposable (actually, it indicates so right on the back of the packaging materials).

* Product was not found on the Party City website, so this URL simply leads to their front door.


Place the ring on your finger much like you'd put any other ring on.

Turn the "star" clockwise (as though tightening it) to activate it.

Turn the "star" counterclockwise {anticlockwise} (as though loosening it) to neutralise (turn off) the ring.

This ring is disposable, so I don't have to tell you which part to remove, carry to an open-pit copper or gadolinium mine, instruct you to huck it in there so that a front-end loader runs over it & causes it to 'destruct', and then rather emphatically tell you not to.

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 99¢ apiece, it really isn't that expensive.

Because this is a disposable ring 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, huck it into an open grave, 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 ring lighted up and in its natural habitat (my finger, of course!).

Spectrographic analysis
Spectrographic analysis of the filtered white LED in this ring.

Spectrographic analysis
Spectrographic analysis of the filtered white LED in this ring; spectrometer's response narrowed to a band between 450nm and 460nm to pinpoint native emission peak wavelength, which is 457.170nm.

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 the Party City store in Federal Way WA. USA on 04-22-13.

Reasonably light weight despite being battery-operated
The price is right

Fits one of my fingers only; not the other three (not incl. thumb)

Marketed as being disposable -- that means a nice LED whirls down the {vulgar slang term for caca}bowl when the batteries go to pot

UPDATE: 00-00-00

    MANUFACTURER: (Unknown) for Amscan
    PRODUCT TYPE: Light-up LED finger ring
    LAMP TYPE: Phosphor white LED (appears to be T1 / 3mm size)
    No. OF LAMPS: 1
    SWITCH TYPE: Twist top of ring on/off
    BEZEL: N/A
    BATTERY: Unknown type & number of button cells
    CURRENT CONSUMPTION: Unknown/unable to measure
    ACCESSORIES: Batteries, already installed
    SIZE: 24.50mm T x 29mm Dia. x 17mm I.D. (ring part)
    WEIGHT: 9.30g (0.330 oz)
    WARRANTY: Unknown/not stated


    This is a novelty product and will not be assigned a "star" rating for that reason.

Light-Up "Star" Ring *

Do you manufacture or sell an LED flashlight, task light, utility light, or module of some kind? Want to see it tested by a real person, under real working conditions? Do you then want to see how your light did? If you have a sample available for this type of real-world, real-time testing, please contact me at

Please visit this web page for contact information.

Unsolicited flashlights, LEDs, and other products appearing in the mail are welcome, and it will automatically be assumed that you sent it in order to have it tested and evaluated for this site.
Be sure to include contact info or your company website's URL so visitors here will know where to purchase your product.

WHITE 5500-6500K InGaN+phosphor 
ULTRAVIOLET 370-390nm GaN 
BLUE 430nm GaN+SiC
BLUE 450 and 473nm InGaN
BLUE Silicon Carbide
TURQUOISE 495-505nm InGaN
GREEN 525nm InGaN 
YELLOW-GREEN 555-575mn GaAsP & related
YELLOW 585-595nm
AMBER 595-605nm
ORANGE 605-620nm
ORANGISH-RED 620-635nm
RED 640-700nm
INFRARED 700-1300nm
True RGB Full Color LED
Spider (Pirrahna) LEDs
True violet (400-418nm) LEDs
Agilent Barracuda & Prometheus LEDs
Oddball & Miscellaneous LEDs
Programmable RGB LED modules / fixtures
Where to buy these LEDs 
Links to other LED-related websites
The World's First Virtual LED Museum
Legal horse puckey, etc.
LEDSaurus (on-site LED Mini Mart)

This page is a frame from a website.
If you arrived on this page through an outside link,you can get the "full meal deal" by clicking here.