Abahanga mu kuvura indwara z’uruhu bemeza ko muri rusange ibyo bikoresho bifite umutekano haba mu biro ndetse no mu rugo.Dr. Shah agira ati: "Icyiza kurushaho," muri rusange, urumuri rwa LED rufite umutekano ku mabara yose y'uruhu n'ubwoko bwose. "“Ingaruka mbi ntizisanzwe ariko zishobora kuba zirimo umutuku, kubyimba, guhinda, no gukama.” ...
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