Delivering 3500 lumens of color brightness (color light output) and 3500 lumens of white brightness (white light output), using Epson's 3LCD, 3-chip technology, the PowerLite 1835 projects brilliant images with true-to-life color. Industry leading 3-chip, 3LCD technology delivers true-to-life, vibrant color, and requires 25% less electricity per lumen of brightness than 1-chip DLP projectors.2 
2Data source: Jan. 2010. Average of 910 shipping models for which the manufacturers provided lumens and total power data, all resolutions and brightness levels.
Allows you to instantly turn off the lamp and put the presentation in sleep mode by sliding the A/V Mute Slide into the closed position. This keeps your audience focused on you and saves energy. Whether you are in a small office or a company boardroom, you have the flexibility to position your projector closer to or further away from the screen without compromising on image quality. All projectors produce heat, and a fan is built in to cool the projector. As air is pulled in to cool the projector, dust can settle on the internal components and reduce the projector's lamp life or dull the image. The projector's filter stops this, prolonging the lamp life and maintaining high image quality. To clean or change the filter, simply open the door, vacuum the dust off or replace the filter, close the door, and you're done! The PowerLite 1835 comes with a wide variety of connection options, and makes projecting from HDMI devices a snap. The Powerlite 1835 comes with 2 VGA connections, which allow you to connect two computers to the projector and switch between presenters using the remote control. A handy extra monitor out port means you can project out to 2 projectors, or a projector and a computer monitor. The PowerLite 1925W's RJ-45/ethernet connections allows the projector to be accessed through a LAN or WAN. This gives your IT department the ability to manage projectors the same way other peripherals are managed, and enables special features such as network message broadcasting. No more fumbling with your projector before a presentation! Instantly project images from a PC or Mac® via a USB connection, without pressing any additional keys on your computer or the projector. Project presentations and photos, without a computer, by plugging a USB thumb drive, digital camera, or other USB memory device directly into the projector. The PowerLite 1835 offers powerful sound and communication features, no added cost, including a built-in 16W speaker, microphone input and closed captioning decoder. No cool-down time is required, so your projector is ready to be packed up as soon as you're done presenting. Straighten images that appear skewed on the screen without having to reposition the projector. An additional Quick Corner innovative feature helps you move any of the four corners of an image independently using the remote control. Get up to 6000 hours of projection time on a single lamp.3 
3Lamp life will vary depending upon mode selected, environmental conditions and usage. Lamp brightness decreases over time.