Ifilimu ye-PO yokuguqula ukukhanyaisishwankathelo:
Ngokusebenzisa ifilimu ye-PO yokuguqula ukukhanya, izityalo zinokufumana ukukhanya okongeziweyo okuluncedo kwe-infrared, okungancedi kuphela ukukhula kwezityalo kunye nokwandisa ubushushu kwi-greenhouse.