The Optoma EH330UST is a dedicated ultra short throw projector (0.25:1 lens) featuring 3600 ansi lumens, native widescreen high definition 1080p resolution (1920 x 1080 pixels, 16:9 aspect ratio) and a number of useful presentation features including two HDMI inputs, powered USB port, native office viewer (for PC Less presentations) and powerful 16W built-in speaker.
For recommendations for choosing your screen size please see our Screen size advice page.
To make sure this projector is the right fit for you room
The EH330UST, is perfect for businesses, schools and colleges. It is bright with an ultra short throw meaning it can project a 100” image from less than 0.5m away. And having the projector installed so close to the wall avoids any shadows being cast across the screen from the presenter(s).
It provides a complete package for engaging learning with many new features, including two HDMI inputs, powered USB port, native office viewer and powerful 16W built-in speaker.
Ultra Short Throw
With an ultra-short throw lens, you can project an impressive image greater than 100” from less than a metre away. This allows you to place the projector closer to the wall, reducing shadows so you can present with ease; perfect for interactive applications.
Full HD 1080p
1080p resolution gives you sharp and detailed images from HD content without downscaling or compression; perfect for watching Blu-ray movies, HD broadcasting and playing video games.
Give powerful presentations and educational lessons with stunning colours. Optoma projectors provide reliable colour performance suitable for any content and environment. From accurate sRGB colours for lifelike images to vibrant punchy presentations. We have a display mode to specific meet your needs. Perfect for a range of graphic and video presentations.
Add more depth to your image with a high contrast projector. Compared to competing technology, Optoma DLP projectors provide you with brighter whites and ultra-rich blacks, images come alive and text appears crisp and clear - ideal for business and education applications.
Native office viewer
Give presentations directly from your projector without the need of a laptop or PC using the built-in office viewer. Simply copy your Word, Excel, PowerPoint, PDF or JPEG files to a USB stick, SD card or microSD (depending on the projector input*) and display them on the big screen.
*See projector specs for a full list on inputs
Connect your projector directly to a laptop and display the desktop using a USB cable. No need for a bulky VGA lead.
Featuring a wide range of options you can control and monitor the projector remotely.
• RS232 Optoma projector’s come with an extensive set of RS232 commands making it simple and easy to manage using any control system.
• AMX Compatibility Dynamic discovery protocol is incorporated into the projector allowing for easy installation with AMX control systems.
• LAN Control Using the compatible RoomView® software you can power on/off, monitor, manage and control up to 250 projectors at the same time from any computer.
• Schedule the projectors to power on/off.
• Control and alter the projector settings using the simple web browser.
• Emergency text broadcast capabilities for urgent or important announcements.
• Automatically receive email updates for lamp maintenance.
Display your PC or laptop screen on the projector via the network connection*.
*HDCast Pro app required on your device
Instantly connect and present wirelessly from your PC, Mac or mobile device using the free App HDCast Pro* and optional wireless USB dongle. The app gives you the freedom to wirelessly share and present documents, photos and your devices camera turning it into a document camera. Creating a more connected and collaborative experience for everyone.
* Available on Windows, MacOS, android and iOS
HV keystone and four corner adjustment
Adjust the keystone in both the vertical and horizontal plane or individually warp each corner of the image to create a perfectly square image. Ideal for uneven walls or where projector placement is awkward and needs to be installed at an angle.
A powerful built-in speaker provides exceptional sound quality and an easy setup without the need for costly external speakers.
Optoma projectors can display true 3D content from almost any 3D source, including 3D Blu-ray players, 3D broadcasting and the latest generation games consoles.
Use the USB-A port to power an HDMI dongle, such as Google Chromecast.
Remote mouse with built-in laser pointer
Keep your audience’s attention focused on the right things using the simple, yet powerful remote with mouse control and built-in laser pointer.
Eco+ technology brings together high contrast, improved lamp life and energy saving features that are easy to use while reducing power consumption.
Using the specially designed lamp modes, you can reduce the power consumption by up to 70%. Each mode also has a positive effect on the lamp life, while lowering the total cost of ownership and reducing maintenance.
Eco AV mute
Stay in control of your presentation with Eco AV mute. Direct your audience's attention away from the screen by blanking the image when no longer needed. This also reduces the power consumption by up to 70%, further prolonging the life of your lamp.
This feature allows the projector to be instantly powered on again, if it is accidentally switched off.
Auto power off
There may be instances when the projector is left running when not in use. To help save energy, the "auto power off" feature automatically turns off the projector after a set period of time if it is not being used.
Direct power on
The projector will start up instantly when power is supplied to the unit. This eliminates the need to manually turn on the projector via the remote control or the keypad, ideal for use in rooms with a “master” power switch.
Direct power off
Power off your projector immediately or directly at the mains. This means you don’t have to wait for the projector to cool down before turning it off.
Optoma projectors have been designed to operate 24 hours a day in standard orientation. Perfect for applications where prolonged periods of use is required. Subject to 24 hour terms and conditions.
24/7 Operation - standard lamp warranty applies. Projector warranty is based on standard business usage hours. For optimum performance Optoma recommends that your projector is turned off or placed in standby mode for 30 minutes every 24 hours to prolonging the life of your lamp.
USB for display and control
USB Type A for power
USB for PC Less Presentation
RJ45 For Control/Monitoring
RS232 For Control
Dimensions (W x H x D) in cm
34.3 x 11.2 x 38.3
Fan Noise (db)
Fan Noise in Eco Mode (db)
Audio Output (Watts)
Lamp Life (Hours)
Lamp Life Eco Mode (Hours)