The Aopen QH15s is a LCD projector offering 180 ANSI lumens, a contrast of 1000:1 and a resolution of HDTV 1280 x 720. The manufacturer specifies a durability of 30000 hours for the LED light source – calculating to 20.5 years at four hours of use per day. To ensure a rectangular image even with asymmetrical placement, the projector includes digital keystone correction for both the horizontal and vertical axes. Regarding projection size, the value of 180 ANSI lumens allows for an image width of up to 136 cm in darkened environments. In rooms with ambient light, the image width should be correspondingly reduced to a maximum of 91 cm. Regarding signal processing, the model is compatible with incoming 1080P content. Since the projector supports Miracast and Airplay screen mirroring, video signals can also be streamed wirelessly from the end device.