Kuyambira m'chaka cha 1962, nyali zamalonda zamalonda za LED zakhala zikugwiritsidwa ntchito ngati malo osamalira zachilengedwe m'malo mwa mababu wamba a incandescent. Ndi zotsika mtengo, zopanda mphamvu, ndipo zimapereka mitundu yosiyanasiyana yofunda. Amapanga, komabe, amapanga kuwala kwa buluu, komwe kuli koyipa kwa maso, malinga ndi zomwe adapeza ...
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