Bakin karfe na lantarki za a iya raba zuwa chromium bakin karfe electrode da chromium nickel bakin karfe electrode, wadannan nau'o'in electrodes guda biyu daidai da na kasa misali, sun dace da GB/T983 -1995 kima.Chromium bakin karfe electrode amfani umarnin, chromium bakin karfe yana da wani lalata juriya (oxidizing acid, Organic acid, cavitation) zafi da kuma lalata juriya.