Amandla okushaya asezingeni eliphezulu, ukusebenza okuhle kakhulu kokumelana nokuqhekeka kwezinga lokushisa eliphansi, ukugeleza kokuncibilika okuzinzile, ukuqina nokuqina okulinganiselayo, ukuba nombala ofanayo, ukuqeda okuhle kwendawo, ukuncishiswa kokubumba okuphansi, ukuhambisana ne-RoHS.