HIGH QUALITY LIGHTING. XGA (1024 x 768) resolution and the power of 3500 lumens HIGH BRIGHTNESS AND HIGH CONTRAST. High 17000:1 contrast ratio. The image quality of these projectors does not disappoint. Up to 3500 lumens mean bright, clear images with the lights on and the 17000:1 contrast ratio adds sharpness with darker blacks and whiter whites. Preset modes give you the best image quality on a beige wall, whiteboard, blackboard or other surface. ECO BLANKING. Instantly dim the screen to divert your audience's attention onto you with the Eco Blanking feature on the remote control. Activate when the projector isn't being used and lower the lamp's power usage down to 30%. This saves energy and significantly extends the life of the lamp, which saves you money.