This requires resignation from some sources such as fluorescent lamps, Gas etc. Classic lights as bulbs or halogens, it is difficult to use, due to the very high currents needed to obtain the required power light illumination . It also involves the use of substantially thicker wires supplying power to reduce energy loss and voltage drop on wires .
Zaidi ya hasara hizi zinaweza kuondolewa na taa ugavi voltage daima kwa ajili ya mwanga na thamani ya chini (low voltage DC umeme) kwa mfano . 12V . Hii inahitaji opt kutoka baadhi ya vyanzo kama vile taa za umeme, Taa za umeme, Gesi nk . Classic mwanga kama balbu au taa halogen, ni vigumu kutumia, kutokana na mikondo sana zinahitajika ili kupata nguvu ya required mwanga illumination . Pia inahusisha matumizi ya waya kikubwa thicker kusambaza nguvu ili kupunguza hasara ya nishati na kuacha mottagning waya .