✓Ọkan-Duro ipese
✓odidi ninu ọkan ṣeto
✓Da lori awọn ibeere rẹ
■Ko nilo owo ina
■ Agbara fifipamọ
■ Fifi sori ẹrọ rọrun
■ Gigun igbesi aye
✓Ko si nilo ina owo;Fifi sori ẹrọ rọrun
✓Nfi agbara pamọ; Aye gigun
✓Apẹrẹ egboogi-ekuru, iṣelọpọ DC, ailewu ati igbẹkẹle.
✓Iṣakojọpọ iṣọpọ, gbigbe irọrun.