Uhlu Lokuphakathi: Amandla Wohlobo Olubonakala Okuphakeme Ingilazi ephansi ye-E 2. Ukuqonda Ukusebenza Kwamandla: Isixazululo Esinzimile Sekusasa. 4. Izinzuzo Zohlobo Lokubona Okuphakeme Kwezingilazi ezisezingeni eliphansi le-E 4.1 Okuthuthukisiwe Insulation 4.2 UV Protection 4.3 Ukukhanya Kwemvelo Okuphelele 4.4 Ukusetshenziswa Kwamandla 5.