Ilambu lenkungu eliya phambili ukukhanya kwemoto okuklanyelwe ukukhanyisa nge-strip beam. I-beam ngokuvamile iklanyelwe ukuthi ibe nephoyinti elicijile lokusika phezulu, futhi ukukhanya kwangempela kuvame ukukhwezwa phansi futhi kuqondiswe phansi nge-Angle ebukhali. Ngenxa yalokho, amalambu enkungu ancike emgwaqeni, athumele ukukhanya emgwaqeni futhi akhanyise umgwaqo esikhundleni songqimba lwenkungu. Ukuma nokuma kwezibani zenkungu kungafaniswa futhi kuqhathaniswe ne-beam ephezulu nezibani ezikhanyayo eziphansi ukuze kuvele ukuthi le mishini ibonakala ihluke kangakanani. Womabili amalambu akhanyayo aphezulu naphansi ahlose ama-engeli angashoni, okuwavumela ukuba akhanyise umgwaqo ongaphambi kwemoto. Ngokuphambene, ama-engeli abukhali asetshenziswa amalambu enkungu asho ukuthi akhanyisa kuphela phansi ngqo phambi kwemoto. Lokhu kwenzelwa ukuqinisekisa ububanzi beshothi yangaphambili.
