Iiphaneli zelanga zizixhobo eziguqula ukukhanya kwelanga kube ngumbane ngokusebenzisa iiseli ze-photovoltaic (PV). Iiseli ze-PV zenziwe ngezinto ezivelisa ii-electron ezivuyayo xa zibekwe ekukhanyeni. Ii-electron zihamba kwisekethe kwaye zivelise umbane othe ngqo wangoku (DC), onokusetyenziswa ukunika amandla izixhobo ezahlukeneyo okanye ukugcinwa kwiibhetri. Iiphaneli zelanga zikwabizwa ngokuba ziipaneli zeeseli zelanga, iiphaneli zombane zelanga, okanye iimodyuli zePV. Unokukhetha amandla ukusuka kwi-5W ukuya kwi-550W.
Le mveliso yimodyuli yelanga. Kucetyiswa ukuba kusetyenziswe abalawuli kunye neebhetri. Iiphaneli zelanga zineendlela ezininzi zokusetyenziswa kwaye zinokusetyenziswa kwiindawo ezininzi, njengamakhaya, iinkampu, iiRVs, iiyachts, izibane ezitalatweni kunye nezikhululo zombane welanga.