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VOLT POWER INCANDESCENT
"BLACK LIGHT" BULB

Incandescent "Blacklite" Light Bulb, retail $1.00
Manufactured by (Unknown) for Volt Power
Last updated 03-10-11

This is a 75 watt incandescent "blacklight" light bulb.

Its primary purpose is to cause "glow-in-the-dark" (or "blacklight") posters to spring to life. However, I really can't recommend these bulbs for two primary reasons:

They burn extremely hot!!!
UV output is horribly low (please see spectrographic analyses below)

It comes equipped with a medium screw base (size E26 or E27) aka. "Edison base".

Advertised bulb lifetime is 2,500 hours -- considerably longer than other "blacklight" bulbs.
This may account at least in part to the terribly low NUV (and essentially zero true UV) emission.

To use these bulbs, just replace any light bulb in an open area (away from paper, cloth, plants, lampshades, etc.) with an E26 or E27 medium screw base with one of these bulbs.

They operate at very high temperatures (measured at 464°F {240.00°C} after 5 minutes!!!), so you really must keep them away from flammable materials...after all, you don't want baby funnel web spiders, mosquito wrigglers (larvae), or Western Tiger Swallowtail butterfly caterpillars (larvae)...er...uh..I mean...you don't want an unwanted fire!!!

There is an advisement on the packaging materials stating that the bulb should be operated base-down to horizontal only. Presumably, this is so that the exceptionally high bulb temperature does not damage light receptacles or the fixtures themselves if the bulb were operated base-up.

This product is designed to be operated from "house current" (110 volts to 130 volts AC 50Hz or 60Hz), not batteries of any type, so I do not have to tell you which part to remove, huck down the basement stairs into the room crawling with thousands of hungry, hungry termites, and then rather emphatically tell you not to.

This is an incandescent "blacklight" 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 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 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 flashlights 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.

The bulb itself (the pear-shaped outer envelope) is very likely made out of Wood's glass; which appears as a deep royal purple when viewing white light through it. Wood's glass is special barium-sodium-silicate glass incorporating about 9% nickel oxide. It is a very deep violet-blue glass, opaque to all visible radiation except longest red and shortest violet. It is quite transparent to violet/NUV/UV radiation in a band between 320nm and 400nm with a peak at transparency of 365nm; and a fairly broad range of infrared and the longest, least visible red wavelengths.

Temperature of the bulb itself (the outer glass envelope) measures 464°F (240.00°C) after 5 minutes.

I was going to destroy it by letting it burn for several minutes, and then throwing a bit of water on it (capturing video of it and posting it here), but I'd no longer have it available for additional testing or analyses if anybody requests it, so that idea rather quickly went to pot.

Photograph of this bulb operating.

Photograph of attempted barbecue...er..uh...ATTEMPTED FLUORESCENCE

of two objects (a small piece of dark salmon colored paper and a pink tritium Glow Ring - both known to fluoresce very strongly when exposed to UVA radiation) while being irradiated by this bulb.

Photograph of the 2009 NIA commemorative insulator in uranated* glass (known to fluoresce very strongly when exposed to UVA radiation) when irradiated by this bulb.

Photograph of a uranated* glass marble (known to fluoresce very strongly when exposed to UVA radiation) when irradiated by this bulb.

*"Uranated" - infused with an oxide anion of uranium, *NOT* tinkled (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".

Photograph of a piece of green acrylic (also known to fluoresce very strongly when exposed to UVA radiation!!!) when irradiated by this bulb.

Additional investigation has revealed that ***ALL*** of the
fluorescence that you see in the four above photographs was caused
by the LED ''SIGNS'' Sign that I have hanging on the opposite wall!!!

Spectrographic analysis of this bulb.

Spectrographic analysis of this bulb; spectrometer's response narrowed to
a range between 350nm and 520nm and the spectrometer was irradiated with much more radiation than otherwise necessary in a mainly futile attempt to capture UV and NUV emission.

Spectrographic analysis of this bulb; spectrometer's response narrowed to
a range between 175nm and 420nm and the instrument's sensitivity
enhanced in a mainly futile attempt to capture UV and NUV emission.

Another spectrographic analysis of this bulb; spectrometer's response narrowed to
a range between 190nm and 420nm and the instrument's sensitivity
enhanced in a mainly futile attempt to capture UV and NUV emission.

USB2000 spectrometer graciously donated by P.L.

TEST NOTES:
Test unit of this (plus a bunch of other products) was sent by a website fan on the US east coast, and was received at 4:09pm PST on 02-28-11 (or "28 Feb 2011" or even "Feb 28, Twenty Double Sticks" if you prefer).

UPDATE: 00-00-00

Unknown

Incandescent "blacklite" light bulb w/medium screw base

Incandescent bulb

Somewhat toroidal (360°X, ~300°Y)

N/A

Glass (possibly Wood's glass) with metal base

N/A

Unknown/unable to measure (stated as 75 watts)

Light splatter-resistance only (when off)

FOR CHRIST SAKES NOOOOO!!!

None

100mm H x 60mm D

Unable to weigh (no scale at my disposal)

China

Unknown (probably warranted against DOA only)

Incandescent "Blacklight" Bulb *

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