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Ukwethetha Okuqukethwe 1. Ukuqonda Izibani Zelanga: Ukuphatha Amandla Olanga 2. Izinzuzo Zokukhanya Kwelanga: I-Eco-Friendly and Ist-Efective Lighting 3. Ukukhetha izibani ezifanele: Izici Okufanele Zicatshangelwe 4. Ukufakwa Kwenziwa Kulula: Ukubeka Izibani Zelanga Esikhaleni Sakho Esingaphandle 5. Amacebiso Okusebenza Okuhle.