Mai i te tau 2008, kua whakatapua a YIY ki te rangahau, te whakawhanake, me te hanga i ngā kaitahuri. He whānui ā mātou pūkenga R&D me te hanga, e āhei ai mātou ki te whakaputa i ngā kaitahuri ranu, ngā kaitahuri auau-teitei, ngā kaitahuri auau-iti, te pūnaha hurihanga hiko, ngā kaiwhakahaere pūngao rā MPPT, me ngā rihi AC. Kei a mātou anō hoki ngā ratonga OEM/ODM.