The Ben Q MW721 is just the projector you need to perfect your presentation in all settings. Featuring WXGA resolution with 3500 ANSI lumens & 13, 000:1 high contrast ratio, the MW721 also offers multi display for ultra-smooth connection to keep your presentation lookin' great! Power saving, Eco friendly World-Leading Smart Eco Technology for a Greener Environment As the first DLP brand to incorporate Philips' Image Care technology into its projector lamp system, Ben Q has taken a further leap, developing its own Smart Eco Technology to perfect what DLP can do for energy saving in the 21st century classroom. Built with this brand new invention, the MW721 brings together uncompromised brightness, exquisite picture quality & optimized lamp life through innovative features. Eco Blank Mode The Eco Blank mode allows teachers to blank the projection screen whenever they need to direct their students' focus back on them – or simply when the projector is not in use. When activated, this special feature dims the lamp power automatically, lowering the total power consumption by 70%.