Projection System: 3LCD, LCD Panel: 0.61-inch, Light Source: Lamp, Resolution: Full HD, Colour Light Output: 4,000 Lumens, White Light Output: 4,000 Lumens, Native Aspect Ratio: 16:9, Contrast Ratio: 16,000:1, Lamp Type: 230 W UHE, Projection Lens F Number: 1.51 - 1.99, Projection Lens Focal Length: 18.2 mm - 29.2 mm, Focus Method: Manual, Offset: 0.416666666666667, Input: Video: 1 x RCA (Yellow). The Epson V11H978053 EB-FH52 projectors are based on 3-chip LCD technology for amazing colour, incredible detail and solid reliability.