Why does the Luminus UVC LED shine blue? Is this UV light?

The blue light stems from photoluminescence in one of the semiconductor layers in the LED device structure.  The blue emission is normal and the majority of the output is in the non-visible UVC spectrum.

Luminus UVC LED products can be found here: https://www.luminus.com/products/uv

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Luminus Website https://www.luminus.com/

Luminus Product Information (datasheets): https://www.luminus.com/products

Luminus Design Support (ray files, calculators, ecosystem items: [power supplies, lenses, heatsinks]): https://www.luminus.com/resources

Luminus Product Information sorted by Applications:  https://www.luminus.com/applications

Where to buy Samples of Luminus LEDs: https://www.luminus.com/contact/wheretobuy.

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