Optoma ZH406ST

native resolution 1920 x 1080 brightness zh406: 4500lm zh406st: 4000lm contrast ratio 300,000:1 (w/ extreme black) projection lens zh406: f/2.5~3.26; f=20.91~32.62mm, 1.6x manual zoom zh406st: f/2.8, f:7.51 throw ratio zh406:1.4~2.24 zh406st: 0.496 offset (all with tolerance ± 5 %) zh406 : 100% ~116% zh406st: 116% fixed. keystone correction ±30° vertical, ±30° horizontal projection screen size zh406 : 32”~301.1 zh406st: 36.43” ~ 301.4” lens shift (tolerance ± 5 %) zh406:vertical lens shift 100% ~116% zh406st: na aspect ratio 4:3, 16:9, lbx, native, auto projection distance zh406 : 1.0m to 9.4m zh406st: 0.4m~3.31m video compatibility 480i/p, 576i/p, 720p/1080i (50/60hz), 1080p (50/60hz) uniformity 85% display colors 1073.7 million horizontal scan rate 15.375 ~ 91.146 khz vertical scan rate 50~ 85 hz (120hz for 3d feature projector) connections hdmi x1, hdmi/mhl x1, vga in x1, vga out x1, audio in 1 x 1, mic x1, audio in 2 x1, audio out x1, usb power (5v/1.5a), rs232, video x1, 12v out x1, micro usb(fw upgrade), 3d sync computer compatibility wuxga,1080p,uxga, sxga+,sxga ,wxga+,wxga,720p,xga,svga, vga compression, vesa standards, pc & macintosh compatible 3d support full 3d light type laser phosphor speakers (watts) 15w x2 light source life (hours) 20,000 hours to 50% brightness (eco) noise level (eco) 33 db weight (kg) 5 kg size (w x d x h mm) 337 x 265 x 108 (excluded adjustment feet) heat dissipation (btu/hr) bright : max 277w @ 110vac945(btu/h) max 269w @ 220vac918(btu/h) eco: max 212w @ 110vac723(btu/h) max 206w @ 220vac703(btu/h) power consumption bright : max 277w @ 110vac max 269w @ 220vac eco: max 212w @ 110vac max 206w @ 220vac eco standby :