Designed for the Whiteboard sector, the ML 673W model from Megapower features 2500 ANSI lumens, a native XGA 1024 x 768 resolution and a contrast ratio of 800:1. The manufacturer specifies a runtime of 3000 hours for this projector's lamp. A look at the light output reveals: The 2500 ANSI lumens are sufficient to illuminate an image width of up to 435 cm in darkened rooms. If room light is present, we recommend not exceeding a maximum width of 290 cm. Specifically for the educational or business sector, an interactive whiteboard function is also integrated. The projector was released in 2011 and is officially no longer distributed by Megapower.