Professional Ophthalmic Equipment Vision Lcd Auto Chart Projector WZ-3000 With Long-term Service Projection distance 1.5m ~ 7m Projection magnification 30 x (at 5m) Projection size 330mm(W) x270mm(H) (at 5m) Chart Switching speed 0.01~0.02S Mask Number 1 open, 5 horizontal lines,8 vertical lines, 21 single letters, 1 red/green Mask Switching speed One mask per 0.01~0.02s Program 2 sets programs, each program contains up to 30 steps Lamp 12V,50W(halogen lamp) 12V,10W(LED) Power saving fuction Will automatically standby in 10 min Power source AC 220V ,50Hz or 110V, 60Hz Power consumption 80W Dimensions 320mm(L) x 218mm(W) x 240mm(H) Net weight 7.2Kg Standard accessories Remote control, Polarized metal screen, halogen lamp, polarized glasses, fuses(2), batteries(2) Optional accessories Floor stand, wall stand