[04/27/2017] Epson PowerLite 1781W WXGA 系列投影機，Epson PowerLite 1781W WXGA, 3,200 lumens color brightness (color light output), 3,200 lumens white brightness wireless 3LCD Portable Projector，定價$799.99，目前特價$599.99 USD。Prime境內免運費 (學生可以免費試用Prime)。哪裡買: amazon。