ViewSonic PX748-4K UHD Projector – 4000 ANSI Lumens, 240Hz, 4.2ms Input Lag, HDR for Home Theater and Gaming

The ViewSonic PX748-4K is a 4,000-lumen 4K UHD DLP projector for home theater and gaming in bright rooms. It supports HDR and HLG, a 240Hz mode with 4.2ms input lag, USB-C input, and a 1.3x zoom lens, covering films, sport, and fast-paced games with one display.

Deep-Dive Story & Problem/Solution

A Bright Room Projector That Still Satisfies Gamers

High-brightness projectors are usually built for offices, with slow processing and basic color. Gaming projectors, in turn, often lack the output for daytime use. Households that want one large screen for everything get caught between the two.

The PX748-4K combines 4,000 ANSI lumens with a 4K UHD DLP engine and a 12,000:1 contrast ratio. HDR and HLG are supported over two HDMI 2.0b inputs for streaming, disc, and broadcast content.

For gaming it accepts 1080p at up to 240Hz with 4.2ms input lag. That is fast enough for competitive shooters, while 4K/60Hz serves story-driven console titles.

4K HDR at 4,000 Lumens

The projector handles image sizes from 30 to 300 inches. A 1.13–1.47 throw ratio places a 100-inch picture from about 8.2 to 10.7 feet.

Easy Setup and Modern Connectivity

Horizontal and vertical keystone of ±40 degrees corrects awkward angles. USB-C carries video from laptops and handhelds, RJ-45 and RS-232 allow control, and a 10W speaker is built in. Eco mode extends lamp life to 20,000 hours.

Setup Instructions

How to Set Up the ViewSonic PX748-4K

1. Place the projector 8.2 to 10.7 feet from a 100-inch screen.
2. Connect a console or streaming box to HDMI, or a laptop to USB-C.
3. Use zoom, focus, and keystone to align the image.
4. Choose Gaming mode for low input lag, or Movie mode with HDR for films.