Scorpion UV Light?

GCCLee

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The LC fan club ain't gonna like this one : )What LM Does Stain Magic work best at ? That is an Epic Question and would be interesting to see if any Top Dawgs will respond.
 

J Scott W

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Urine inspection works best around 385 nm wavelength. My experience stain removal for mustard etc is improved around 355 nm but can work up to 395 nm. Todd from CTI or Larry Cobb might be more qualified to answer on the wave length for use with stain removal.

It is also helpful to know how powerful the light is that is being emitted, and how much of that power is actually at the desired wavelength.

Understand that the wavelength of light emitted form any light is actually a blend of many wavelengths, like white light is made up of the wave lengths for each of the colors combined. The output is more of a Bell curve. Peak wavelength is the center or top peak of the curve, but there will be wavelengths on both sides of that peak also being emitted.

The sharpness of the peak (called the Q) indicates how concentrated the light is near the peak. If the light has a high Q, then most of the power is emitted as light near the peak wavelength. With a lower Q, the light would be spread out over a wider range of wavelengths.
 

Larry Cobb

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Todd;

Just to clear up a few misconceptions . . .

Almost every UV light with these inexpensive 5mm UV leds . . .

has two drawbacks.

1. The LED's are usually 410 nm in wavelength, even though they state other frequencies

(not suitable for good stain ID, or for stain removal)

2. Since the LED's don't have sufficient heatsinking, 50% of the LED's will fail in a few months.

Buyer Beware !

Larry

P.S. Our inexpensive $39 light is much better quality for identifying stains:

http://www4.cobbcarpet.com/zen/inde...ch_in_description=1&keyword=Ultraviolet+Light
 
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Short wave UV (UV type-C) light is often employed to accelerate the oxygen decomposition of certain oxidizer-type stain removal products. The optimal wavelength is 260 nm. The particular wavelength is adept at breaking molecular bonds. As such, it works in similar fashion to break DNA chains, as it does the oxygen bonds in the CC chemicals. This type of lamp if often used for disinfection lamps you might see wall-mounted in some restaurants and health-care facilities. The "out of range" visible portion often seems to have an almost "baby blue" hue on the fluorescent bulbs.

The only UV-C bulbs for ready use in our industry I've seen are on the CTI DCI light.

While a a typical "blacklight" that is designed for 365-400 nm may have enough stray wavelength to offer a little help to accelerate an oxidizer, it won't have nearly the effect than a light made for the purpose.
 

Larry Cobb

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Shawn;

When Dupont did the original testing with oxidizers and UV, the quote from their patent found :

By the use of a long wavelength UV lamp, the shorter wavelength UV light most damaging to fabrics is avoided. Finally the process of this invention is readily limited to just the stained areas of the carpet or other fabric, minimizing any effect on the overall carpet or fabric. Aggressive cleaning agents such as bleach remove not only the turmeric stain but the dyes and colors in the carpet or other fabric. Mild cleaning agents alone are not effective at removing the tough turmeric stain. The combination of the hydrogen peroxide and the long wavelength UV light is demonstrably more effective than either process alone.

We have also found our long wavelength spot UV light to work quite effectively.

http://www4.cobbcarpet.com/zen/index.php?main_page=product_info&cPath=69&products_id=1384

In a spotting contest with about 20 cleaners,

the two winners who completely removed the mustard and furniture stains . . .

used our UV light.

Larry
 
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AJR

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Whatshisbutt
pee in a corner and test with the shades drawn. if your pee glows in the dark then it a winner. :bullshit: oops wrong application lol.
Urine inspection works best around 385 nm wavelength. My experience stain removal for mustard etc is improved around 355 nm but can work up to 395 nm. Todd from CTI or Larry Cobb might be more qualified to answer on the wave length for use with stain removal.

It is also helpful to know how powerful the light is that is being emitted, and how much of that power is actually at the desired wavelength.

Understand that the wavelength of light emitted form any light is actually a blend of many wavelengths, like white light is made up of the wave lengths for each of the colors combined. The output is more of a Bell curve. Peak wavelength is the center or top peak of the curve, but there will be wavelengths on both sides of that peak also being emitted.

The sharpness of the peak (called the Q) indicates how concentrated the light is near the peak. If the light has a high Q, then most of the power is emitted as light near the peak wavelength. With a lower Q, the light would be spread out over a wider range of wavelengths.
 
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J Scott W

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Jeffrey Scott Warrington
My experience stain removal for mustard etc is improved around 355 nm but can work up to 395 nm.

I just noticed the mistake in my post. Meant to say 255 to 295. This is more in line with what Larry and Shawn have posted.
 

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