The Casio XJ-M251 Signature Projector have increased I/O connectivity, DLP 3D Ready and have auto brightness adjustment to save power and reduce eye fatigue. It features 3000 lumens, 4:3 aspect ratio with 1800:1 contrast ratio. The XJ-M251 has native resolution of WXGA (1200 x 800) with 1,024,000 pixels. By combining a laser, a fluorescent element and an LED Casio XJ-M251 has created an original mercury-free hybrid light source* capable of generating high brightness. The XJ-M251 has achieved high brightness output of green light, which until now, has been considered difficult with conventional semiconductor light sources, by efficiently converting blue laser light into green light using a fluorescent element. It provides 10X longer light source life than Casio mercury lamp while being more economical based on lamp replacement. The XJ-M251 Hybrid Light Source projector features quick startup and shutdown. It delivers a 50 percent increase in color spectrum for high impact presentations due to improvements in LED and laser technology. The XJ-M251 projector can display DLP 3D Ready content from a 3D capable computer and with the optional 2D-3D conversion software convert and view 2D composite video content. The 1.5X manual zoom lens gives you the flexibility to easily position the projector. The LampFree� design is backed by a comprehensive 3 year warranty including the light source; users can expect reliable worry free operation from the Casio Hybrid Projectors.