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Where can I buy UVC / germicidal lamps with different wavelengths?

I'm doing a science fair project that involves lamps UVC wavelength different, but I can only seem to find stores that sell only one type.

UVC sources are available cathode Cold Floro and metal halide technology. pressure mercury discharge used in the low Floro and cold cathode source lines 185 and 254nm. The tubes are readily available in 254nm and 254nm or 185 only mixed. I do not have a U.S. source, but I bet that Thomas does not register. Line 185nm will produce ozone in the air if it is operated as precautions are invited to address this matter and corrosive gases. Needless that the two lines cause radiation damage to skin (including cancer) and eyes (cataracts (and damage to the retina 185nm)), precautions measures shall be taken to minimize radiation hazards. On the high intensity side, I was unable to find details spectrum of metal halide sources, but he would be surprised if they differ massively. Finally, a simple homemade carbon arc lamp to produce broadband, including UVC, so if you have a grid on a quartz glass substrate, which could be a viable source. carbon may be appropriate had with your suppliers local cinema. HTH. Regards, Dan.

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