It was soo much fun!
Blacklight
This is sturdy reasonable priced torch and always a plus batteries coming with it - I have used it in work for the last week and it has been so handy looking in nooks and crannies - the ultra violet is a great option to check for pest activity. Also easy to use clicking each time you want to change the setting. These are really good. I ordered 2 and have used them to make the skeletons glow for Halloween and for a "glow in the dark" birthday party. Could also use them at school for science class. Despite its compact size, it packs a bright light and does a good job at showing up stains etc.
Effective illumination 2 to 3 feet. Good quality, solid housing for the bulb.
- UV Blacklight: theranchhands.com.
- Blacklight - Wikipedia.
- Il sentiero dei sogni luminosi (Italian Edition).
Only downside is the illumination is only effective for about 2 to 3 foot distance from the lamp. Other than that, a nice item.
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Remembering something I'd seen on TV and a My cat was ill about a month ago, to cut a long story short, the house had a very strong smell of urine. Initially I thought I would have to replace the carpets when the cat was better.
On your wavelength
That night, armed with the spray in one hand and the torch in the other, the offending, now dry areas were quickly found and treated. Although we keep the house clean and hygienic, the Black light clearly showed us some other 'Yuck!
This torch is the one of the best things I've bought for a long time. Worth every penny and a real eye-opener that has saved me a lot of money. Good uv light with a remote control to change the light flashing pattern.
How Black Lights Work
You need to be aware though that this is quite noisy when turned on as such would only work in a high volume environment. This won't work well in a quieter room. Very good product, the only thing I found was the switch movement is quite loose and leads to battery s going flat if you dont make sure that its off. Plus the same item is beeing sold for twice the price under the guise of windscreen chip repair curing light on the same platform!!!
This is a great product.
How Black Lights Work | HowStuffWorks
What you see glowing under a black light, whether on a fluorescent poster or an invisible hand stamp or a newly washed white T-shirt, are phosphors. A phosphor is any substance that emits visible light in response to some sort of radiation. A phosphor converts the energy in the UV radiation from a black light into visible light.
In the next section, we'll see how phosphors are used in regular fluorescent lighting and in black lights. White T-shirts and socks normally glow under a black light because modern detergents contain phosphors that convert UV light into white light.
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This makes whites look "whiter than white" in normal sunlight. What you are seeing in sunlight is the normal reflection of visible white light from the cloth, as well as the emission of white light that the phosphors create from UV light in sunlight. The T-shirt really is whiter than white!
How Fluorescent Lamps Work. Ultraviolet light frequencies are above violet on the spectrum and are invisible to the human eye.