Magetsi akunja (Chingerezi: road lamp/street light) Msewu ndi mtsempha wa mzindawo. Kuunikira kwakukulu ndi magetsi a mumsewu. Magetsi a mumsewu ndi malo owunikira omwe amayikidwa pamsewu kuti apereke mawonekedwe ofunikira kwa magalimoto ndi oyenda pansi usiku. Magetsi amsewu amatha kusintha momwe magalimoto alili. Chepetsani kutopa kwa madalaivala, ndikuthandizira kukulitsa kuchuluka kwa msewu ndikuwonetsetsa kuti magalimoto ali otetezeka.

Magetsi a m'minda, zounikira m'malo ndi zowunikira mumsewu zimapanga njira yowunikira yamitundu itatu, yomwe imapangitsa kuti ntchito yokongoletsa misewu ikhale yokongola, imakongoletsa mawonekedwe amzindawu usiku, ndipo imathanso kubweza kusowa kwa kuunikira kwa msewu. Nyali zapansi panthaka zimakhala zazikulu kapena zozungulira, zomwe zimagwiritsidwa ntchito kwambiri m'malo ogulitsira, malo oimika magalimoto, malamba obiriwira, mapaki, zokopa alendo, malo okhala, ziboliboli zamatawuni, misewu yoyenda pansi, masitepe omanga ndi malo ena makamaka amakwiriridwa pansi kuti azikongoletsa. kapena zowunikira, ndipo zina zimagwiritsidwa ntchito kutsuka makoma kapena kuunikira mitengo. , ntchito yake imakhala yosinthasintha kwambiri, maonekedwe a nyali ya khoma ndi yokongola, mizere ndi yosavuta komanso yokongola, masitayelo ake ndi osiyanasiyana, ndipo mawonekedwe ake ndi osiyanasiyana.

Kukonza ndikosavuta, kugwiritsa ntchito mphamvu kumakhala kochepa, gwero lowunikira nthawi zambiri ndi nyali zopulumutsa mphamvu, zopangira nthawi zambiri zimakhala zitsulo zosapanga dzimbiri, zinthu za aluminiyamu, zinthu zachitsulo, pamwamba pa thupi la nyali ndi kupopera mbewu mankhwalawa, ndipo thupi la nyali nthawi zambiri limawotchedwa. ndi chitsulo chathyathyathya. Thupi la nyali litapopera mothandizidwa ndi electrostatic, mawonekedwe ake ndi osalala, mtundu wake ndi wowala, kuwala kwake ndi kofanana, ndipo kumakhala ndi zofunikira zotsutsana ndi dzimbiri. Chipangizochi chikayikidwa, nthawi zambiri chimakonzedwa ndi zomangira zinayi, ndipo chimakhazikika ndi mphamvu zokwanira.