Perkins e tsejoa e le moetsi oa pele oa lienjine tsa disele tse fehlang matla tse nang le matla a ho tloha ho 7 kW ho isa ho 2000 kW.Bareki ba bangata ba Europe, Middle East le Afrika ba hlalositse merero ea bona ea ho fehla matla ka lihlahisoa tsa Perkins, tsohle hobane ba tseba hore enjene e 'ngoe le e' ngoe e Perkins e lerata le tlase, e sebetsa hantle ebile e tšepahala haholo.