# Projector VIEWSONIC LX750-4KE — Standard throw laser projector 4000 ANSI lumens UHD 4K (3840×2160), 16:9, 3.5 kg, white

**URL:** https://aio.lv/en/product--viewsonic-lx750-4k--12038003
**Data updated:** 2026-03-12 16:47 (EET)
**Category:** Projectors
**Manufacturer:** VIEWSONIC
**Manufacturer code:** LX750-4K
**EAN:** 0766907035629
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

VIEWSONIC LX750-4KE is a standard-throw laser data projector with 4000 ANSI lumens brightness and native UHD 4K (3840×2160) resolution. It offers a 16:9 aspect ratio, 1200:1 contrast, manual focus and a 11.9–15.5 mm focal range. Laser light source rated for 20,000 hours, supports HDMI 2.0b, RS-232 control and common video modes up to 2160p. Suitable for conference rooms, classrooms and large venues requiring high-resolution projection.

## Long description

VIEWSONIC LX750-4KE is a standard-throw laser projector designed for high-resolution data and video projection. It delivers native UHD 4K (3840×2160) resolution with a 16:9 aspect ratio, 4000 ANSI lumens of brightness and a contrast ratio of 1200:1. The projector uses a laser light source rated for up to 20,000 hours, supports HDMI 2.0b input and RS-232 control, and has manual focus with an 11.9–15.5 mm focal range. Its white housing and 3.5 kg weight make it suitable for installation in conference rooms, classrooms and larger venues that require detailed, bright projection.
Advantages
The LX750-4KE offers a combination of high brightness and native 4K resolution that ensures legible text and detailed images in well-lit spaces. A long-life laser light source reduces maintenance and replacement costs compared with lamp-based projectors. Manual focus and a moderate focal range allow precise image adjustments during installation, while support for common video modes up to 2160p and HDMI 2.0b ensures compatibility with modern 4K sources.
Suitable for
Conference rooms and meeting spaces requiring clear presentations
Classrooms and lecture halls where detailed images and text are needed
Large venues and public spaces with controlled projection surfaces
Environments needing long runtime and low maintenance projection
Key specifications
Native resolution: UHD 4K (3840×2160)
Brightness: 4000 ANSI lumens
Aspect ratio: 16:9
Contrast ratio: 1200:1
Light source: Laser, rated up to 20,000 hours
Focus: Manual; focal range: 11.9–15.5 mm
Screen size compatibility: 1524 – 7620 mm (60 – 300")
Weight: 3.5 kg
Product colour: White
Control: RS-232 support; video input: HDMI 2.0b (supports up to 2160p)
How to use
Install the projector at the recommended throw distance for the desired screen size, align it with the projection surface and adjust manual focus until the image is sharp. Connect video sources to the HDMI 2.0b input for native 4K signals and use RS-232 control if integrating with room control systems. Position the unit on a stable surface or secure it using approved ceiling mounts, taking the projector's weight into account. Ensure proper ventilation and follow the manufacturer's guidelines for power connection and safety.
Usage recommendations
For best results, calibrate image geometry and focus after installation, use an appropriate projection screen or a smooth, matte surface, and select video sources that output 2160p when displaying 4K content. Regularly check ventilation paths and keep the projector free of dust to maintain brightness and extend laser life.

## Specifications

### Network

| Feature | Value |
|---|---|
| Wi-Fi standards | Wi-Fi 5 (802.11ac), Wi-Fi 4 (802.11n), 802.11g, 802.11b |
| Bluetooth version | 5.0 |
| Ethernet LAN | No |
| Bluetooth | Yes |
| Wi-Fi | Yes |
| Smart TV | Yes |

### Ports & interfaces

| Feature | Value |
|---|---|
| Serial interface type | RS-232 |
| DVI port | No |
| HDMI ports quantity | 2 |
| HDMI version | 2.0b |
| PC Audio out | Yes |
| Audio Return Channel (ARC) | Yes |
| HDMI connector type | Full-size |
| USB 2.0 Type-A ports quantity | 1 |

### Features

| Feature | Value |
|---|---|
| Noise level | 33 dB |
| On Screen Display (OSD) | Yes |
| On Screen Display (OSD) languages | Multi |
| HDCP | Yes |
| Noise level (economic mode) | 27 dB |
| HDCP version | 2.2 |
| Video apps | YouTube, Roku Channel, Netflix, Disney+ |
| High Dynamic Range (HDR) supported | Yes |
| High Dynamic Range (HDR) technology | Hybrid Log-Gamma (HLG) |

### Light source

| Feature | Value |
|---|---|
| Light source type | Laser |
| Service life of light source | 20000 h |

### Projector

| Feature | Value |
|---|---|
| Contrast ratio (typical) | 1200:1 |
| Projection distance | 1.49 - 9.72 |
| Projector brightness | 4000 ANSI lumens |
| Screen size compatibility | 1524 - 7620 |
| Keystone correction, vertical | +-40 |
| Keystone correction, horizontal | +-40 |
| Matrix size | 0.47 " |
| Horizontal synchronization (max) | 135 kHz |
| Horizontal synchronization (min) | 15 kHz |
| Vertical synchronization (min) | 0.023 kHz |
| Vertical synchronization (max) | 0.24 kHz |
| Native aspect ratio | 16:9 |
| Screen size (max) | 300 " |
| Number of colours | 1.07 billion colours |
| Smart projector | No |

### Packaging content

| Feature | Value |
|---|---|
| Remote control included | Yes |
| Cables included | AC |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 40 |

### Power

| Feature | Value |
|---|---|
| Power source | AC |
| Power consumption (standby) | 0.5 W |
| AC input frequency | 50/60 |
| AC input voltage | 100 - 240 |

### Design

| Feature | Value |
|---|---|
| Cable lock slot | Yes |
| Product colour | White |
| Market positioning | Home cinema |
| Product type | Standard throw projector |

### Lens system

| Feature | Value |
|---|---|
| Optical zoom | 1.3 x |
| Zoom capability | Yes |
| Aperture range (F-F) | 1.94 - 2.12 |
| Focus | Manual |
| Focal length range | 11.9 - 15.5 |
| Offset | 110 % |
| Throw ratio | 1.127 - 1.465 |

### Display

| Feature | Value |
|---|---|
| Built-in display | No |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 3.5 kg |
| Package weight | 4600 g |
| Height | 104 mm |
| Width | 312 mm |
| Depth | 234 mm |
| Package depth | 168 mm |
| Package height | 297 mm |
| Package width | 415 mm |

### Multimedia

| Feature | Value |
|---|---|
| RMS rated power | 10 W |
| Built-in speaker(s) | Yes |

### Storage

| Feature | Value |
|---|---|
| Internal storage capacity | 8 GB |

### Video

| Feature | Value |
|---|---|
| Full HD | Yes |
| Supported graphics resolutions | 3840 x 2160, 640 x 480 (VGA) |
| Supported video modes | 1080i, 2160p, 1080p, 720p, 576p, 576i, 480p, 480i |
| 3D | Yes |

### Technical details

| Feature | Value |
|---|---|
| Image lag time | 1 ms |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All VIEWSONIC products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized VIEWSONIC service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: native aspect ratio, screen size compatibility, weight, projector brightness, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

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