_{Fektheri ea VR}

Likhalase tsa rona tsa letsatsi ha se feela moriti oa hau o tloaelehileng, ke mohlala oa setaele le ho tšoarella. E entsoe ka thepa ea boleng bo holimo, e etselitsoe ho u fa tšireletso e ikhethang ea UV ntle le ho sekisetsa setaele. Moralo oa khale o fana ka moea oa ho rarahana le bokhabane, o e etsa khetho e phethahetseng bakeng sa ketsahalo efe kapa efe. Tlhokomelo e hlokolosi ea lintlha e bonahala meleng e bentšitsoeng le li-curve tse fanang ka ponahalo e ikhethang, ea feshene. Foreimi e bobebe, e hananang le kutu e fana ka botsitso le matšeliso, ho netefatsa hore ho roala likhalase tsena tsa letsatsi ke phihlelo e monate. Kamano pakeng tsa foreimi le leoto la seipone e matlafatsoa, ​​​​ho thibela ho senyeha le ho senyeha. Lilense tsa rona li entsoe ka likhalase tsa boleng bo holimo tse alafiloeng ho thibela mahlaseli a kotsi a UV, ho sireletsa mahlo a hau ho pepesehela letsatsi. Ka phetiso ea khanya e phahameng, lilense tsena li ntlafatsa boiphihlelo ba hau ba pono, li etsa hore tsohle li hlake le ho feta. Hore na o natefeloa ke nako ea boikhathollo, ho nka karolo mesebetsing ea khoebo, kapa ho bapala lipapali tsa kantle, likhalase tsa rona tsa letsatsi li fana ka tšehetso e phethahetseng ea pono.

Li ke ke tsa etsa hore u shebahale hantle feela empa hape li tla etsa bonnete ba hore mahlo a hao a sirelelitsoe hantle. Kahoo, tsoela pele, reka likhalase tsa rona tsa setaele, 'me u tlohelle boiketlo le menyaka eo li e tlisang e be karolo ea bohlokoa ea bophelo ba hau. U ka kholiseha hore likhalase tsa letsatsi tse setaele le tse tšoarellang e tla ba molekane oa hao ea phethahetseng nako le nako ha u kena letsatsing.