Isihlilingi esiyisicaba esigcinwe kahle singaletha iminyaka yenkonzo ethembekile. Isihlilingi esigcinwe ngendlela engafanele singehlisa izinga buthule—silahlekelwe amandla ngenxa yokuguga, ukuchayeka kumakhemikhali, imisebe ye-UV, nokukhula kwesikhutha ngaphandle kwanoma yisiphi isixwayiso esibonakalayo.
Ukuhlanza isihlilingi esiphakamisayo akulula njengokusiphonsa emshinini wokuwasha. Izihlilingi zokwenziwa ziyizingxenye zokuphakamisa ezakhiwe ngobunjiniyela—futhi ukuhlanzwa okungafanele kungabeka engcupheni amandla azo, ukuqina, nempilo yesevisi.
Isihlilingi esiyindilinga sakhiwe ngomgogodla othwala umthwalo wezintambo zokwenziwa ezivikelwe ngomkhono ongaphandle. Amanye amadizayini afaka umkhono obomvu wesignali wangaphakathi oyisixwayiso ngaphansi kwekhava yangaphandle . Lo mshini usebenza njengenkomba ebonakalayo: uma umkhono wangaphandle ulimele futhi umkhono wangaphakathi obomvu ubonakala, ubonisa ukuthi umgoqo wokuvikela wephuliwe futhi umgogodla othwala umthwalo ungase ube sengozini.
Ukukhetha ububanzi besihlilingi obuyisicaba obufanele kuyisenzo sokulinganisa phakathi kwezici ezimbili ezibalulekile: umthamo womthwalo nokucindezela kwendawo. Isihlilingi esibanzi sinikeza imikhawulo ephezulu yomthwalo wokusebenza futhi sisabalalisa isisindo endaweni enkulu, kunciphisa ubungozi bokuchotshozwa noma ukumosha imithwalo ethambile.