Ukusebenzisa ubushushu be-aluminium yoqobo, xa ubushushu be-LED busebenza, ukuphepha ukufudumeza kunye neengxaki zokusilela kwecandelo ukukhanya kwe-LED;i-sheeting inokukhetha ukuba idibanise, ukuhlangabezana nemfuno eyongeziweyo;Isakhelo sensimbi engenasici, ukuya kuthi ga kwi-3 iminyaka ayiyi kugqwala.