I advise you to buy

[Valerit]

Сообщение от OlegTsi

Dear Valerit.

Yes, indeed, among those flashlights that you vidili and bought, could be just flashlights with blue or wavelengths above 380 nM.

The whole secret is in the wavelength. For most effective results it should be 365 nM.

This is the main characteristic of the device.
at the expense of power, yes I will agree, the stronger the better during the day can be seen.

So look vnimaelno:

Your device -
"Circular illumination field, high light output (120 mW).
Durable, high-intensity UV-LED.
Pure UV-A spectrum: 360 nm to 370 nm, Peak at 365 nm.
598 Euro

Device with Ibeya:
365 NM Peak UV LED Ultra Violet 1 Watt LED Flashlight
$ 39.00

Does your instrument power of 120 mW, and ibeevskogo - 1 W, that is 8 times more powerful.

http://cgi.ebay.com/365-NM-Peak-UV-L...item43a309f9dc

I have the moral right to put an end to our discussion of the UV lamps.
Obtained and tested as described by Oleg Chinese version, got from the U.S. (before it even dva-Germaniya/10vatt and China /5 Watt)
Chinese from Oleg suitable only to illuminate the keyhole when the porch light is off, although for this purpose is best suited ordinary flashlight for one euro.
The device of which I spoke, out of competition! To understand oneself and not to offend anyone, it was necessary to test all systems.
Go ahead, try it!