Re thabetse ho hlahisa ho uena li-NRV tsa rona tse fokotsang, tse kopanyang ts'ebetso e tsotehang le botšepehi bo ke keng ba lekanngoa. Li-reducers tsa rona li fumaneha ka mefuta e leshome e fapaneng, e 'ngoe le e' ngoe e na le litlhaloso tsa eona tsa mantlha, e netefatsang hore e lekana hantle bakeng sa litlhoko tsa hau.
Moko oa lihlahisoa tsa rona ke matla a pharaletseng a matla ho tloha ho 0.06 kW ho ea ho 15 kW. Ho sa tsotellehe hore na u hloka tharollo ea matla a phahameng kapa tharollo e kopanetsoeng, ba fokotsang rona ba ka finyella litlhoko tsa hau tse khethehileng. Ntle le moo, li-reducers tsa rona li na le torque e phahameng ea tlhahiso ea 1760 Nm, e netefatsang ts'ebetso e ntle ts'ebetsong efe kapa efe.