The wall-mountable short throw projector VPL-SX226 is suitable for using a projector with a white board. A Short Throw distance of 75cm for an 80” screen is good for limited space in a classroom. The teacher can be free from the projector's glare & able to easily teach their students. By using this projector with an interactive white board the initial costs can be reduced. This projector has a long-lasting lamp of 10, 000 hours. The Unique lamp dimming function by Sony reduces the lamp power usage & lamp power consumption. It's low TCO & usability means the user can enjoy bright images for a much longer time. VPL-SX236 is a colourful & bright projector. Thanks to the 3LCD Sony " Bright Era™", the picture is colourful & the images are bright. & it also has vivid 2, 800 lumen with XGA resolution. These specs are best for a classroom environment. It's easier for all of the students to see with this big screen size. Smart Connection with PC, Tablet & smartphone is also supported. The wireless presentation capability makes it simple to present files from your PC or smart phone/tablet.