Optoma EH412ST Technology 4000-Lumen Full HD Short-Throw DLP Projector

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  • Optoma Technology EH412ST 4000-Lumen Full HD Short-Throw DLP Projector
  • Optoma Technology EH412ST 4000-Lumen Full HD Short-Throw DLP Projector
  • Optoma Technology EH412ST 4000-Lumen Full HD Short-Throw DLP Projector
  • Optoma Technology EH412ST 4000-Lumen Full HD Short-Throw DLP Projector
  • Optoma Technology EH412ST 4000-Lumen Full HD Short-Throw DLP Projector
  • Optoma Technology EH412ST 4000-Lumen Full HD Short-Throw DLP Projector


Optoma Technology EH412ST Overview

Enjoy bright images and high dynamic contrast at short throw distances with the Optoma EH412ST 4000-Lumen Full HD Short-Throw DLP Projector. Its native 1920 x 1080 resolution displays data and images clearly at various viewing distances, while its 50,000:1 dynamic contrast ratio helps enhance detail in dark images. Its 0.49:1 throw ratio allows you to place the projector near the front of the room, making it well suited for large-screen presentations in small rooms.

The EH412ST features VGA and two HDMI inputs, one of which is MHL-compatible for sharing media from your compatible smart device. A USB port provides power for compatible HDMI streaming adapters. An IR remote control is included as an added convenience.

Key Features

  • Brightness of 4000 Lumens
  • Full HD (1920 x 1080) Native Resolution
  • Short 0.49:1 Throw Ratio
  • VGA, 2x HDMI Inputs
  • VGA Output for Loop-Through
  • Analog Audio Input and Output
  • Compatible with Crestron RoomView
  • Integrated 10-Watt Speaker
  • IR Remote Included

DLP Technology

Digital Light Processing (DLP) technology is designed to provide digital projection with higher contrast, faster response time, good pixel structure, and virtually no color degradation.

Rec.709 Color Reproduction

The EH412ST can reproduce the Rec.709 color gamut to help ensure cinematic color as the director intended and saturated colors for gaming and animated content.

Direct Power On

Turn on the projector directly from the power source. This is helpful in installations that rely on power-on timers. The sleep timer can be used to turn the projector off after a set time.

Dynamic Black Technology

Dynamic Black is designed to provide more depth to images by smoothly adjusting the lamp output to enhance the contrast ratio, making bright scenes appear crisper and clearer, while retaining detail in dark scenes with deep blacks.

MHL Connectivity

Connect your compatible smartphone or tablet to the projector via MHL, allowing you to view presentations, documents, streamed videos, and photos.

Integrated Speaker

The built-in speaker mitigates the need for an external speaker system, helping to simplify your setup.

Long Lamp Life

The lamp can last up to 15,000 hours in Dynamic Mode, reducing the number of lamp changes.

RS-232 Control

Control the projector using HEX or ASCII commands via your RS-232 cable.

USB Power

Power and charge your USB devices with the USB power port. It delivers up to 1 amp, making it well suited for use with compatible HDMI streaming devices.

Signal Power On

The projector can power on when it receives a signal through the HDMI input, ensuring the projector is turned on at the same time as the source device.

Crestron RoomView with Network Control

Crestron software provides a custom configurable interface to monitor, manage, and control every connected device in every room remotely from virtually any computer. Via a master computer, you can manage up to 250 projectors at the same time, control and alter settings using a web browser page (including OSD menu control), and set up email alerts for warning messages, making the EH412ST well suited for use in large installations in both educational and business environments.

In the Box

  • Optoma Technology EH412ST 4000-Lumen Full HD Short-Throw DLP Projector
  • Remote Control with Batteries
  • AC Power Cord
  • Limited 2-Year Warranty on Projector
  • Limited 90-Day Warranty on Lamp

Optoma Technology EH412ST Specs

Image Display

Display System 0.65" DMD DLP
Native Chip Resolution 1920 x 1080 (Full HD)
Supported Resolutions Maximum: 4K UHD - 3840 x 2160
Maximum Brightness 4000 Lumens
Uniformity 80%
Offset 116% ± 5%
Aspect Ratio Native: 16:9
Supported: 4:3
Dynamic Contrast Ratio 50,000:1
DLP Link 3D Yes
Supported 3D Formats Frame Packing
Side by Side
Top Bottom
Color Wheel 6-Segment (RYGCWB)
Color Depth 10-Bit (1.07 Billion Colors)
Scan Horizontal: 15.375 to 91.146 kHz
Vertical: 50 to 85 Hz or 120 Hz
Latency 32 ms


Focus Manual
Lens f/2.3 - 2.78 (f = 21.6 mm)
Optical Zoom None
Throw Distance 1.3 - 11.3' / 0.396 - 3.444 m
Throw Ratio 0.49:1
Projection Size 36.2 - 307.8" / 91.95 - 781.81 cm


Keystone Correction Vertical: ± 40°
Digital Zoom 2x
Multi-Input Support (PIP/PBP) Not Specified by Manufacturer
Ceiling Mountable Yes
Rear Screen Projection Yes
Built-In Speaker Yes
Speaker Power 10W
Projection Tilt Option No
Remote Yes

Input/Output Connectors

Inputs/Outputs 1 x HDMI with MHL Support (HDMI Type-A) Audio, Video Input
1 x HDMI (HDMI Type-A) Audio, Video Input
1 x VGA (DE-15/DB-15) Video Input
1 x VGA (DE-15/DB-15) Video Output
1 x 1/8" / 3.5 mm Mini Audio Input
1 x 1/8" / 3.5 mm Mini Audio Output
1 x RS-232 (DE-9/DB-9) Control
1 x USB 2.0 (USB Type-A) Power Output
Wireless LAN / Wi-Fi None


Light Source Lamp
Lamp Power 245 W
Expected Lamp Life Full Brightness: 4000 Hours
Medium Brightness: 10,000 Hours
Low Brightness: 15,000 Hours
Fan Noise Full Brightness: 26 dB
Security Cable Lock Slot
Password Protection
AC Input Power 100 to 240 VAC, 50 / 60 Hz
Power Consumption Full Brightness: 325 W
Low Brightness: 205 W
Operating Altitude 10,000' / 3048 m
Operating Temperature 41 to 104°F / 5 to 40°C
Operating Humidity 0 to 85%
Dimensions (W x H x D) 12.4 x 4.5 x 9.5" / 31.5 x 11.4 x 24.1 cm
Weight 7.7 lb / 3.49 kg

Packaging Info

Package Weight 8.8 lb
Box Dimensions (LxWxH) 15.8 x 13.55 x 6.65"
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Warranty Information

1 Year Parts & Labor Manufacture Warranty
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