luminance：450ANSI resolution ratio：1920*1080P projector distance：1.37～5m projector size：40-150inch keystone correction：Electronic ladder correction system/ETCS ajustment of focus：electronic focusing light source lifetime：40000h contrast：1000:1 throw ratio：1.34:1 light source：LCD+LED product size：210*195*200MM language：multilingualism remote control：infrared remote control projection mode：desktop forward projection, desktop back projection, lifting forward projection, lifting back projection