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 MS619ST brings together uncompromisable 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%. No Source Detected Mode The automatic switch to Eco Blank Mode after the projector is turned on for over three minutes without a display source, eliminating unnecessary energy waste & prolonging the life of the projector lamp. 0.5W in Standby Mode When inactive, the MS619ST keeps power consumption to a minimum with 0.5W standby power, achieving what was once a challenge for ealier projector models. This technological advancement in energy saving certainly helps extend the projector lamp life & lower energy costs. Audio Pass Through With the built-in speaker, the MS619ST can be used as an audio system when its on the standby mode. This saves you the trouble as well as the extra budget for getting a separate audio system. Blu-ray Full HD 3D Supported Ben Q MS619ST is built with latest DLP technology to support 3D functionality, allowing schools to bring an immersive learning experience to their students with a simple preparation of 3D glasses & 3D content from your blu-ray player. Quick Installation By pressing Quick Intall key on the remote control, installer can quickly acces to installation related functions in the OSD menu. Thoughtful Design Auto Power Off Automatic power off after the projector is turned on for over thirty minutes without a display source, eliminating unnecessary energy waste & prolonging the life of the projector lamp. Auto Blank for Safe Use Auto Blank is an eye protection feature designed to ensure safe use. It enables the MS619ST to detect movements within 20 centimeters* in front of the lens & cut off the projection light automatically.