Key Features
    Model: PX748-4K
    True 4K HDR visual experience
    4,000 ANSI Lumens offering bright images
    Direct Big-screen streaming via USB Type-C
    4.2ms Ultra-Fast Input & 240Hz high refresh rate
| Projection Features | |
| Resolution | 3840x2160 | 
| Brightness | 4000 (ANSI Lumens) | 
| Projection Distance | 0.75m~9.76m(100"@2.50m) | 
| Contrast Ratio | 12000:1 | 
| Image Size | 30" - 300" | 
| Video Formats | Resolution Support: VGA(640 x 480) to 4K(3840 x 2160) HDTV Compatibility: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 2160P | 
| Lamp Details | |
| Type | Lamp | 
| Lamp Power | 240W | 
| Lamp Life | Light Source Life (hours) with Normal Mode: 4000 Light Source Life (hours) with SuperEco Mode: 20000 | 
| Audio | |
| Audio Formats | Audible Noise (Normal): 33dB Audible Noise (Eco): 28dB | 
| Built-in Speaker | Yes (10W) | 
| Connectivity | |
| Interface | Input: HDMI: 2 (HDMI 2.0b, HDCP 1.4/2.2) USB Type C: 1 (5V/ 2A) Output: Audio-out (3.5mm): 1 USB Type A (Power): 1 (5V/ 1.5A) 12V Trigger (3.5mm): 1 | 
| Power | Power Supply Voltage: 100-240V+/- 10%, 50/60Hz(AC in) Power Consumption: Normal: 310WStandby: <0.5W | 
| Others | Control: RS232 (DB 9-pin male): 1 RJ45 (LAN control): 1 | 
| External Features | |
| Color | White | 
| Weight | 2.8kg | 
| Dimension | 312x222x108mm | 
| Warranty | |
| Manufacturing Warranty | 1 Year Warranty | 
| Parts Warranty | 1 year lamp warranty | 
The
 ViewSonic PX748-4K is a 4,000 ANSI Lumens 4K home projector that shines
 in value and brightness and delivers pixel-perfect visuals in true 4K 
clarity with HDR/HLG support. You can experience a whole new level of 
gaming with 4.2ms Ultra-Fast Input, a 240Hz refresh rate, and USB Type-C
 connectivity for direct streaming from Nintendo Switch. Set it up 
faster and easier than ever before with powerful warping, auto V 
keystone, H/V keystone, and 1.3x optical zoom, capable of creating a 
screen of up to 300" on any surface. Adding on to that is the LAN 
control capability compatible with home automation systems and 12V 
trigger output, making the PX748-4K a perfect addition to your smart 
home. The ViewSonic PX748-4K comes with a 1-year warranty and a 1-year 
lamp warranty.
| Brands | Viewsonic |