nkhani

M'moyo watsiku ndi tsiku, anthu ambiri amaganiza kuti mphamvu za nyali za LED zimagwirizana mwachindunji ndi kuwala kwawo. Komabe, kuunikira mozama pamutuwu kumasonyeza kuti izi siziri choncho. Ngakhale mphamvu yamagetsi imagwira ntchito pakugwiritsa ntchito mphamvu komanso kugwiritsa ntchito magetsi, sizomwe zimafunikira kudziwa momwe kuwala kungakhalire kowala. M'malo mwake, chinthu chofunika kwambiri ndi kuwala kowala.

Mphamvu imayesedwa mu watts (W) ndipo imayimira ntchito yochitidwa ndi chinthu pa nthawi ya unit. Kukwera kwamphamvu kwamphamvu, kumawonjezera mphamvu ndi mphamvu zogwiritsa ntchito mphamvu, koma izi ndizomwe zimangowonetsa komanso osati choyimira chachikulu cha kuwala. Kumbali ina, kuwala kowala, komwe kumayezedwa mu lumens (LM), kumawerengera kuchuluka kwa kuwala komwe diso la munthu lingazindikire pagawo lililonse. Kukwera kwa lumen kumapangitsanso kuwala kowala kwambiri.

Kuti muwerenge kuwala kwa nyali, muyenera kulingalira za kuwala kwa kuwala, kuyeza mu lumens pa watt (LM/W). Kuwala kosiyanasiyana komwe kumakhala ndi kuwala kofananako kumakhala ndi mphamvu zosiyanasiyana. Kuchuluka kwa kuwala kowala, mphamvu zochepa zimadyedwa pansi pa kuwala kofananako. Njira yowerengera ya kuwala kowala ndi flux yowala = kuwala kowoneka bwino * mphamvu.

Mwachitsanzo, taganizirani nyali ziwiri: nyali ya 36W yokhala ndi kuwala kwa 80lm/W imatulutsa kuwala kowala kwa 2880lm, ndi nyali ya 30W yokhala ndi mphamvu yowala ya 110lm/W imatulutsa kuwala kowala kwa 3300lm. Muchitsanzo ichi, ngakhale nyali ya 30W ili ndi mphamvu yochepa, imakhala yowala kuposa nyali ya 36W chifukwa cha kuwala kwake kwakukulu.

Mwachidule, zikuwonekeratu kuti kuwala kowala komwe kumatsimikiziridwa ndi kuwala kowala komanso mphamvu ndiye chinthu chachikulu chomwe chimatsimikizira kuwala kwa nyali. Kumvetsetsa kusiyana kumeneku kungathandize ogula kupanga zisankho zomveka posankha magetsi a LED kuti akwaniritse zosowa zawo.