LEDs - Gallium Indium Nitride UV, violet, purple, blue, aqua, turquoise, green, white. Also Gallium Arsenide and others. New LED MUSEUM! GaN, InGaN, SiC, GaAs, GaP, GaAlP, ZnSe, flashlight, flashlights.

110V 102xNUV LED LIGHT "BULB"

110v 102xNUV LED Light "Bulb", retail $29.99 (http://store.advancedmart.com...)
Manufactured by (Unknown/not stated)
Last updated 07-29-10

This unnamed LED light "bulb" features a staggering 102 NUV (Near-ultraviolet) / UVA (Ultraviolet type A or simply "longwave ultraviolet") LEDs (advertised as 395nm; spectrographically measured at 394.30nm) that projects a fairly wide beam -- I might call it a "medium flood" -- with a reasonable intensity of UVA radiation.

It is useful for the following purposes:

SIZE

This light "bulb" is quite easy to use actually.
Screw it into pretty much any #E26 or #E27 fixture where you would screw in a regular light bulb. The only significant difference here is that this "bulb" produces a directional "beam", so you'll need to aim it. The best type of fixture to use in this case is a portable lamp; even a trouble light with no shade will do the trick here. That way, you can easily direct (aim) the light where you want, instead of having the possibility of the fixture itself blocking some or all of the light.

Actually, while writing this, I discovered that the "head" rotates over an approx. 300° range of motion, so you can indeed screw this "bulb" into a fixed-position receptacle (or "socket" if you prefer) and turn the head so that it faces the correct direction.

The only warning I have regarding its use is that it must ***NOT*** be used in a fixture controlled by a dimmer switch or a photoelectric ("day/night") sensor. This "bulb" will rapidly (and possibly quite spectacularly) fail if this is done...you don't want baby funnel web spiders, horsefly maggots (larvae), or Western Tiger Swallowtail caterpillars (larvae)...I mean...you don't want an UNWANTED FIRE!!!

This "bulb" is designed to be operated from mains power (110 to 130 volts AC 60Hz), not batteries of any type, so I do not have to tell you which part to remove, gently place on the floor, push under the couch with your foot, patiently wait for those hungry, hungry carpet beetles -- and then rather emphatically tell you not to.

Photograph of the face of the "bulb", showing all of those LEDs.

This is an LED light "bulb", not a flashlight designed to be thrashed, trashed, and abused. So I won't throw it against the wall, stomp on it, try to drown it in the toliet 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 cannoñata

, drop it down the top of Mt. Erupto

(I guess I've been watching the TV program "Viva Piñata" too much again

- candiosity is usually checked with a laser-type device on a platform with a large readout (located at Piñata Central), with a handheld wand that Langston Lickatoad uses, or with a pack-of-cards-sized device that Fergy Fudgehog uses; the cannoñata (also located at Piñata Central) is only used to shoot piñatas to piñata parties away from picturesque Piñata Island, and Mt. Erupto is an active volcano on Piñata 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 a flashlight might have to have performed on it. So this section of the web page will be ***SIGNIFICANTLY*** more bare than this section of the web page on a page about a flashlight.

In fact, those photographs plus spectrographic and beam cross-sectional analyses directly below may very well be "it".

Beam photograph on the test target at 12".

That bluish color is mainly fluorescence of the target itself;
the actual glow as perceived by the eye is a very dim purplish-white.

Beam photograph on a nonreactive white surface at ~12".

This is not all that dissimilar to how the eye would perceive the
light; though that blue coloration does not really exist.

Photograph of security features of a bank card and a Washington
state ID fluorescing when irradiated with the unit.

Spectrographic analysis of the LEDs in this "bulb".

Spectrographic analysis of the LEDs in this "bulb"; spectrometer's response narrowed to a band between 380nm and 410nm to pinpoint peak wavelength -- which appears to be 394.30nm.
Most UVA LEDs have a wavelength tolerance of +-10nm, so this is well within spec. Virtually spot-on, actually!!!

Spectrographic analysis of the fluorescence of a uranated* glass marble when irradiated with this light bub.

*"Uranated" - infused with an oxide of uranium, *NOT* piddled (urinated) on.
Commonly referred to as "Vaseline glass" because it has
a distinct pale yellow-green color when not being irradiated.

Note spelling: "urAnated", not "urEnated","urInated",
"urOnated", "urUnated", or sometimes "urYnated".

USB2000 spectrometer graciously donated by P.L.

ProMetric analysis

Beam cross-sectional analysis.
Image made using the ProMetric System by Radiant Imaging.
That squarish "dip" to the left of center that queered the test

is a defect
in the ProMetric's CCD array which cannot be repaired or compensated for.

TEST NOTES:
Test unit of this plus two other UVA products were sent by J.W. of Advancedmart on 07-22-10 (or "22 Jul 2010" if you prefer) and were received late on the afternoon of 07-24-10 ("24 Jul 2010").

UPDATE: 00-00-00

PROS:
Lots of LEDs ensures high flux in the NUV/long UVA bands
Wavelength is virtually exactly as specified
Uses LEDs for more sturdy & durable construction

CONS:
None that I have yet to find

Unknown

NUV/UVA LED light "bulb"

Modified 5mm NUV LED

102

Medium flood w/ diffuse corona

N/A

Plastic

None

N/A

Unknown/unable to measure (stated as 4.50 to 5.50 watts)

Very slight splatter-resistant at maximum

FOR CHRIST SAKES NO!!!

None

6.250" (99.50mm) L x 1.50" (31mm) D

68 grams

Unknown

At least 90 days

110v 102xNUV LED Light "Bulb" * http://store.advancedmart.com...

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 ledmuseum@gmail.com.

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.







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.