Epson EB-W41 WXGA 1280 x 800 3LCD Projector 3,600 Lumen Contrast 15,000 Wireless LAN IEEE 802.11b/g/n (optional) V11H844040 Colour Light Output 3,600 Lumen- 2,235 Lumen (economy) In accordance with IDMS15.4 White Light Output 3,600 Lumen - 2,235 Lumen (economy) In accordance with ISO 21118:2012 Resolution WXGA, 1280 x 800, 16:10 High Definition HD ready Aspect Ratio 16:10 Contrast Ratio 15,000 : 1 Light source Lamp Lamp UHE, 210 W, 6,000 h durability, 10,000 h durability (economy mode) Keystone Correction Auto vertical: ± 30 °, Manual horizontal ± 30 ° Colour Processing 10 Bits 2D Vertical Refresh Rate 100 Hz - 120 Hz Colour Reproduction Upto 1.07 billion colours