Experience vivid 4K entertainment at home with the ViewSonic PX748-4K. Designed for immersive big-screen viewing in any lighting condition, this projector delivers crystal-clear visuals with 4,000 ANSI Lumens brightness and true 4K UHD resolution. With a lightning-fast 4.2ms input lag and 240Hz refresh rate, it’s perfect for gamers and movie buffs alike. Featuring USB-C streaming, vertical keystone correction, warping, and 1.3x zoom, it offers flexible installation options. Plus, it supports smart home integration with LAN control and a 12V trigger port.
Technical Specifications
Projection System: 0.47" 4K-UHD DLP
Native Resolution: 3840 x 2160 (True 4K UHD)
Brightness: 4,000 ANSI Lumens
Contrast Ratio (SuperEco Mode): 12,000:1
Display Colors: 1.07 Billion
Light Source Type: Lamp
Lamp Wattage: 240W
Lamp Life:
• Normal Mode: 4,000 hours
• SuperEco Mode: 20,000 hours
Lens: F = 1.94–2.12, f = 12–15.6 mm
Projection Offset: 120% ±6%
Throw Ratio: 1.13–1.47
Optical Zoom: 1.3x
Digital Zoom: 0.8x–2.0x
Image Size: 30" – 300"
Throw Distance: 0.75m – 9.76m (100" @ 2.5m)
Keystone Correction: H ±40°, V ±40°
Lens Shift (Digital):
• Vertical: Up to 20%
• Horizontal: Up to 20%
Input Lag: 4.2ms (Ultra-Fast Input)
Refresh Rate: Up to 240Hz
Audible Noise:
• Normal: 33 dB
• Eco: 28 dB
Supported Resolutions: VGA (640x480) to 4K (3840x2160)
HDTV Compatibility: 480i/p, 576i/p, 720p, 1080i/p, 2160p
Horizontal Frequency: 15K – 135KHz
Vertical Scan Rate: 23 – 240Hz
Connectivity
Inputs:
• HDMI x 2 (HDMI 2.0b, HDCP 1.4/2.2)
• USB Type-C x 1 (5V/2A)
Outputs:
• Audio Out (3.5mm) x 1
• USB Type-A (Power) x 1 (5V/1.5A)
• 12V Trigger (3.5mm) x 1
Control Ports:
• RS232 (DB9) x 1
• RJ45 (LAN Control) x 1
Other Features
• Power Supply: 100–240V ±10%, 50/60Hz
• Power Consumption: 310W (Normal), <0.5W (Standby)
• Operating Temperature: 0°C – 40°C
• Dimensions (WxDxH): 312 x 222 x 108 mm (with feet)
• Net Weight: 2.8 kg
• Built-in Speaker: 10W
• OSD Languages: 23 (including English, French, Spanish, German, Japanese, Chinese, Arabic, and more)
Accessories
Included:
• Power Cord x 1
• USB-C Cable x 1
• Backlit Remote Control x 1
• Quick Start Guide
Optional:
• Replacement Lamp: RLC-127
• Carry Bag: PJ-CASE-008
