Present with confidence thanks to long lamp life:
You can put off adding a budget line item for lamps when you know you have 3,000 hours to work with — or 4,000 hours in eco-mode, because the energy-saving projector automatically adjusts lamp brightness to conserve energy.
Spice up your presentation with a 3D projector:
Sometimes 3D projection is the perfect way to get your message across. The projector's ready to bring dinosaurs, engineering/design models and other images to life. Just purchase the optional 3D glasses.
That was RICOH PJ X546 review