3D Digital System : Best View ADF-3000 CONVENIENT - Simply set in front of the projector and plug it into the GPIO port - No delicate alignment is required - Fully digital filter - Mode changes easily from 2D to 3D and 3D to 2D LOW MAINTENANCE COST - Long life without moving parts - Uses inexpensive passive 3D glasses SPECIFICATION - Filter size : 322mm X 183mm - Dark time : 400us - Type : Circular polarization - Frame : 96F / 144F / 192F - Optical Efficiency : 39%±1% - Chanel Crosstalk : 0.8%±0.1% / 125:1 - Power : AC 110~220V / DC24~26V