4k Ultra Short Throw Laser Projector WUXGA 3LCD 4000lm For Education
- 4K UHD Resolution - 3840×2160 pixel clarity
- 4200 Lumens Brightness - Vibrant images even in well-lit rooms
- Ultra Short Throw Ratio (0.21:1) - Large images from minimal distance
- Laser Light Source - 20,000+ hour lifespan
- Eye Protection Technology - Diffuse light source with reduced blue light
- Smart Teaching System - Built-in educational tools and resources
| Display Technology | DLP projection system (0.47" chip) |
|---|---|
| Brightness | 4200 lumens (typical) |
| Contrast Ratio | 1100:1 |
| Projection Ratio | 0.21:1 (Ultra Short Throw) |
| Aspect Ratio | Native 16:10 (compatible with 4:3/16:9) |
| Light Source Life | 20,000 hours (standard), 25,000 hours (eco) |
| Sound System | 8W × 2 speakers |
| Connectivity | HDMI×2, USB×2, LAN, RS232, SPDIF, Audio Out |
| Dimensions | 380 × 342.5 × 143mm (9kg weight) |
Immersive Visual Experience: Large color gamut with 1.07 billion colors (10-bit), high contrast, and wide viewing angles for clear images from any position.
Educational Integration: Built-in Android 8.0 system (3GB RAM + 32GB storage) with specialized teaching tools covering whiteboard, textbook, courseware, and review functions.
Flexible Installation: Supports table/ceiling mounting for front or rear projection with manual keystone correction.
Smart Functionality: Includes wireless screen transmission, Bluetooth connectivity, motion compensation, and timed shutdown.
Model: ZKQSJ-42KL
Includes: User guide, warranty card, power cord, remote control with batteries
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