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> So these lamps may look like sunlight, but they’re missing some crucial wavelengths.

Which means they're also not going to give me a tan... bug, or feature?

Tan is the other end of the spectrum (UV)

They said crucial wavelengths, plural. I took that to its natural conclusion. ;)

It also won't be a great disinfectant, both in literal and figurative senses of the phrase.