SPL ke moetsi oa li-transformer tsa oli oa China naheng ea China, e ka fana ka mefuta e fapaneng ea li-transformer tsa oli ka theko e tlase, molemong oa inshorense ea boleng. Ho na le matla a qoelisoang a oli ea tšepe ea silicon kapa li-transformer tsa kabo, li-transformer tse kentsoeng ka oli ea amorphous alloy le li-transformer tse ikhethileng fekthering ea rona.