SANYO’s 4,000 ANSI lumen PLC-XU4000 projector uses groundbreaking new lamp technology that automatically varies the brightness of the lamp in accordance with the projected image. This new technology offers significant reductions in power consumption, up to 69% on a comparable 4000 ANSI lumen projector, whilst simultaneously enhancing image quality through improved contrast levels. The PLC-XU4000 is ideal for Corporate, education and public sector use; it offers not only fantastic performance but excellent energy saving features and a greatly reduced total cost of ownership.
You can read a more detailed explanation of the Intelligent Lamp Control system by following this LINK