NUV Cap Light, retail $5.00 (
Manufactured by (Unknown) for Import Merchandisers (
Last updated 10-26-08

This is a light designed to be clipped to the brim of a baseball hat.

It has three NUV (near-ultraviolet) LEDs, and feeds from two CR2032 lithium coin cells. It comes in an all-plastic case, colored black.

The price sticker on the package indicates that this product was purchased at a Wall*Mart store, but I was not able to find it on their website. So the link above simply leads to Wall*Mart's front door.


To use the Hat Light, just slide the unit under the brim of a baseball hat.

The "Phoam Head Phred" and my baseball hats I would use to show this product in action are still in some unknown boxes in the garage following a move I made in late-July 2008, so I am simply not able to show this product being used in the manner in which it was intended.

To turn the light on, slide the switch on the right rear of the product to the "ON" position.

Slide the same switch to the "OFF" position to turn the unit off.

To feed the Cap Light, turn the unit upside-down (so that it curves slightly upward at the edges). Slide the battery door off, gently place it on the ground, and kick it into the garden so the hungry, hungry praying mantids will think it's something yummy for their insect tummies and subsequently strike at it...O WAIT!!! YOU'LL NEED THAT!!! So just set it aside instead.

If necessary, remove the two used CR2032 cells from the compartment and dispose of or recycle them as you see fit.

Install two new CR2032 cells, orienting them as shown in the photograph directly below.
Face the left cell flat-side (+) positive down, and the right cell button-side (-) negative down.

Slide the battery door back on until it snaps into place, and be done with it.
Aren't you glad you didn't kick that battery door into the garden with all those hungry, hungry praying mantids now?

Here is what a praying mantis looks like.
I found this guy on the morning of 09-08-06 clinging to the basket of my scooter.

Current usage measures 81mA on my DMM's 4A scale.
When the light is initially activated, current measures 156mA, but sags to 81mA over five or six seconds.

This is an all-plastic product, and there are also no environmental seals (such as O-rings) visible. So I won't do "The Smack Test" or "The Toliet Test" on it. I know you love to see me break and drown things in the name of science, but it "ain't" "gonna" happen today, folks. So I won't throw it against the wall, stomp on it, try to drown it in the toylet bowl or the cistern, run over it, swing it against the concrete floor of a patio, use a small sledgehammer in order to bash it open to check it for candiosity, fire it from the cannoņata, drop it down the top of Mt. Erupto (I guess I've been watching the TV program "Viva Piņata" too much again - candiosity is usually checked with a laser-type device on a platform with a large readout (located at Piņata Central), with a handheld wand that Langston Lickatoad uses, or with a pack-of-cards-sized device that Fergy Fudgehog uses; the cannoņata (also located at Piņata Central) is only used to shoot piņatas to piņata parties away from picturesque Piņata Island, and Mt. Erupto is an active volcano on Piņata Island {In the episode "Les Saves the Day...Again", Paulie Preztail says "Hey, ever wonder why this park's called 'Mount Erupto' anyway?", then Franklin Fizzlybear says "I think its an old native term. Means 'very safe.'"}), send it to the Daystrom Institute for additional analysis, or inflict upon it punishments that more durable products may have inflicted upon them.
So this section of the Hat Light's web page will seem a bit more bare than this section of the web page on a page about a headlamp or other product that appears to be more durable.

Although it is not all that water-resistant, it is designed to be clipped to the brim of a baseball hat in such a manner that it will be protected from direct rainfall, so you ought to be ok in foul weather as long as you aren't out there so long that the brim of your hat becomes soaked to the point of dripping.

Beam photograph on the test target at 12".

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

Product was sent to me by a website fan (this person has sent items before!), and was received on the morning of 10-20-08.

Product was made in Korea.
A product's country of origin really does matter to some people, which is why I published it on this web page.

UPDATE: 00-00-00



    PRODUCT TYPE: Clip-on hat light
    No. OF LAMPS: 3
    BEAM TYPE: Medium spot with faint corona
    SWITCH TYPE: Slide switch on/off on right rear of product
    CASE MATERIAL: Plastic
    BEZEL: Plastic; LEDs & reflectors recessed into hosels for them
    BATTERY: 2xCR2032 cells
    WATER RESISTANT: Splatter-resistant at maximum
    ACCESSORIES: 2xCR2032 lithium coin cells
    WARRANTY: Unknown/not stated


    Star Rating

NUV Cap Light *

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