Question about Yato UV 100 LED torch + BRILLE

this is a UV torch ! the conscientious seller knows that the wavelength is the most important argument !!! = (??350nm - 400nm??) why do you still not have anyone to enter the correct/relevant information ???? so please add it everywhere so that the customer can choose less waste would be produced - the environment (what's left of it) will thank you for it . . . .