• Short throw lens design, creating 100-inch images from just 1.3 meters away
  • Brighter Performance – 4,000 lumens
  • XGA resolution
  • Versatile Connectivity – rich input and output ports for connection
  • Powerful audio with built-in 10W speaker
  • 28dB low noise
  • 15,000 hours lamp life (ECO+ mode)
  • LAN Control – The RJ45 port provides additional network controllability.

The EX418ST is a feature-oriented projector, specially designed for business and education environments. This bright short throw projector has precision optics with a bright light source engineered to handle ambient light conditions. Essential capabilities such as USB power and network connectivity for more flexible operations are included.

Short Throw Projector

The EX418ST offers big image in tight spaces, creating 100 inch projection images from just 1.3 meters away.

More Effective

Short throw projectors can be set close to the wall and eliminate the shadows, are the best solution for presentation scenarios.

Bright 4,000 lumens

The best choice in medium-sized spaces with Optoma’s EX418ST. Perfect for lights on viewing and a vibrant picture for all conditions.

High Contrast

Add more depth to your image with outstanding colors and exceptional black and white contrast performance. The image comes alive and text appears crisp and clear.

Long Lamp Life Up to 15,000 Hours

With the specially calibrated ECO+ mode, you can reduce the power consumption by up to 70% and enabling a longer lamp life of up to 15,000 hours meaning a very low total cost of ownership.

Powerful 10W Speaker

A powerful integrated 10W speaker on this projector allows your content to be heard clearly and is easy to set up without the need for costly external speakers.

USB Power

The built-in USB power output (5V/1.5A) can be utilized to provide power for your streaming dongles such as Chromecast, HDCast Pro, or mobile devices. Charge your mobile devices simply by plugging in your USB charging cable.

Split Screen (*Optional)

With an optional HDCastPro dongle, it can be wirelessly connected to your laptop, tablet or mobile device and share your streaming videos, photos or documents to the big screen. Especially designed for business and education environments, up to 4 computers can project the content simultaneously.

LAN Control

The RJ45 port provides additional network controllability. Crestron RoomView, Extron’s IP Link, AMX dynamic device discovery and PJ-Link protocols are fully supported, allowing for any flexible networking solution.

Low Noise

Quieter than a Whisper, only 28dB noise in Eco mode.

Additional information

Display Technology


Native Resolution



Light Source

Lamp Life

6000/10000/10000/15000 hrs (bright/ ECO/ Dynamic/ ECO+ mode)

Throw Ratio

Zoom Type


I/O Connectors

HDMIx1,HDMI(MHL)x1, VGA-in x2,VGA-out x1,Composite x1,USB x1,Audio-in x1, Mic in x1, Audio-out x1,RS232 x1,RJ45 x1

Speaker (Watts)


Weight (Kg)

Dimensions (W x D x H) (mm)

316 x 244 x 98

Aspect Ratio

Projected image size

31.9”- 270.9”

Projection Distance

0.4 ~ 3.8m

Projection Lens

F=2.7 ; f = 7.15mm

Displayable Colors

1073.4 million colors (10 bit)

Noise Level

Power Supply

100–240V, 50–60Hz, auto-switching

Lamp Type




  • EW418ST-4

  • EW418ST-5

  • EW418ST-1

  • EW418ST-3

  • EW418ST-2

  • EW418ST-0

  • Optoma EX418ST-Ebrochure