Is the QL7000 bright enough for a room with windows?

Yes. Its high-lumen laser output is aimed at rooms with ambient light, so it holds a visible picture during the day better than dim home-theater projectors. For critical movie watching, blinds still help contrast.

Does it need a lamp replacement?

No. It uses a laser light source, so there is no lamp to swap. Output dims gradually over many thousands of hours, and the laser module is a service part rather than a user-replaceable lamp.

Can I place it off-center?

Only partly. It offers vertical keystone and zoom but no horizontal keystone or lens shift, so it should sit close to the screen's horizontal center. Off-axis placement will skew the image.

No. The QL7000 does not support 3D playback, unlike some home-theater projectors in its class.

What inputs does it have?

It has HDMI inputs, two USB-A ports and a 3.5mm audio output, plus built-in speakers. There is no HDBaseT or component video input.

How does it compare with DLP projectors?

The 3LCD engine avoids the rainbow effect some viewers see on DLP models and keeps color brightness high. DLP rivals are often smaller and cheaper, but may show color wheel artifacts.