RJ Enterprises

4000Lumens 4K

Viewsonic PX748-4K

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

The ViewSonic PX748-4K is a high-brightness 4K UHD projector designed for gaming, home entertainment, and professional presentations. With 4000 ANSI lumens, HDR support, low input lag, and high refresh rates, it delivers stunning visuals and smooth performance for a premium viewing experience.

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Display & Imaging

  • Projection System: DLP (Digital Light Processing)
  • Native Resolution: 4K UHD (3840 x 2160) with XPR technology
  • Brightness: 4000 ANSI Lumens – Delivers bright and vivid images, even in well-lit environments.
  • Contrast Ratio: 12,000:1 – Enhances image depth and clarity.
  • Color Display: 1.07 Billion Colors – Provides rich and accurate color reproduction.
  • HDR Support: Yes (HDR10 & HLG Compatible) – Improves contrast and dynamic range for realistic visuals.
  • Throw Ratio: 1.13 – 1.47 – Offers flexible placement options.
  • Optical Zoom: 1.3x – Allows for adjustable screen size without moving the projector.
  • Keystone Correction: Vertical & Horizontal: ±40° – Ensures a perfectly rectangular image.
  • Lens Shift: Yes, Vertical (10%) – Adjusts image position without distortion.
  • Projection Offset: 120% ±5%

Performance & Gaming Features

  • Input Lag: 4.2ms (at 1080p 240Hz) – Ultra-fast response time for smooth gaming.
  • Refresh Rate: 240Hz (at 1080p) – Delivers ultra-smooth motion for gaming and fast-paced action.
  • Supported Resolutions: 1080p, 1440p, 4K UHD – Ensures compatibility with multiple display sources.

Lamp & Lifespan

  • Light Source: Lamp-based
  • Lamp Life:
    • Normal Mode: 4000 hours
    • Eco Mode: 20,000 hours – Reduces maintenance and operating costs.

Connectivity & Compatibility

  • Inputs:
    • HDMI: 2 (HDMI 2.0b, HDCP 2.2) – Supports 4K HDR content.
    • USB Type-C: 1 (5V/2A, Power Delivery & Display Input) – Enables connectivity with modern devices.
    • USB Type-A (5V/1.5A): 1 – Powers streaming devices like Chromecast or Fire Stick.
    • 12V Trigger (3.5mm): 1 – Automates motorized screens.
    • RS232 (DB 9-pin male): 1 – For professional control system integration.
    • LAN (RJ45): 1 – Supports network control and firmware updates.
  • Outputs:
    • Audio-Out (3.5mm Jack): 1 – Connects to external speakers or audio systems.
  • Video Compatibility: NTSC, PAL, SECAM, 480i/p, 576i/p, 720p, 1080i/p, 4K UHD

Audio & Noise Levels

  • Built-in Speaker: 10W Mono Speaker
  • Noise Level:
    • Normal Mode: 31dB
    • Eco Mode: 27dB

Power & Environmental Features

  • Power Supply: 100-240V, 50/60Hz (AC Input)
  • Power Consumption:
    • Normal Mode: 310W
    • Eco Mode: 240W
    • Standby Mode: <0.5W
  • Operating Temperature: 0°C – 40°C
  • Net Weight: 4.1 kg
  • Dimensions (WxDxH): 312 x 265 x 127mm

User Experience & Accessories

  • OSD Language Support: Multiple languages including English, French, Spanish, German, Italian, Russian, Chinese, Japanese, and more.
  • Standard Accessories:
    • Power Cord
    • Remote Control (with Batteries)
    • Quick Start Guide

Brand

Viewsonic

viewsonic

Specification

Projection System 0.47″ 4K-UHD
Native Resolution 3840×2160
Brightness: 4000 (ANSI Lumens)
Contrast Ratio (SuperEco Mode) 12000:1
Display Color 1.07 Billion Colors
Light Source Lamp
Lamp Life 20000 hours (Normal)
Lens F=1.94-2.12, f=12-15.6mm
Projection Offset 20%+/-6%
Throw Ratio 1.13-1.47
Zoom Optical 1.3x, Digital 0.8x-2.0x
Image Size 30″-300
Throw Distance 0.75m~9.76m(100″@2.50m)
Keystone Correction H:+/-40° , V:+/-40°
Input Lag
Connectivity Inputs:HDMI: 2 (HDMI 2.0b, HDCP 1.4/2.2)USB Type C: 1 (5V/ 2A)
OutputsAudio-out (3.5mm): 1
Speaker: 10W
USB Type A (Power): 1 (5V/ 1.5A)
12V Trigger (3.5mm): 1
Control:RS232 (DB 9-pin male): 1RJ45: 1
Weight 2.8kg
Dimensions (WxDxH) 312x222x108mm
Accessories Power Cord: 1
USB-C Cable: 1
Remote Control: 1(w/ backlit)
QSG: Yes

1 review for Viewsonic PX748-4K

  1. Rated 5 out of 5

    SHARON

    nice product

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