Optoma EH412ST Short Throw 1080P HDR Professional Projector | Super Bright 4000 Lumens | Business Presentations, Classrooms, or Meeting Rooms | 15,000 hour lamp life | Speaker Built In | Portable

Description

• Short throw lens: Produces a large 120″ image from approximately 4.5 feet away (throw ratio ~ 0.5:1). Express IT Technologies

• High brightness: 4,000 lumens of brightness suitable for well-lit meeting rooms, training rooms, classrooms. Express IT Technologies

• 4K HDR input: Accepts 4K HDR sources, enabling vibrant colours, brighter whites, deeper blacks—even though output is 1080p. Express IT Technologies

• Vivid colour: 50,000:1 contrast and colour profile based on Rec.709 HDTV primaries. Express IT Technologies

• Extensive connectivity: 2× HDMI, VGA in/out, audio in/out, RS-232, USB-A power. Express IT Technologies

• Integrated speaker: Built-in 10 W speaker for small-to-medium rooms. Express IT Technologies

• Long lamp life: Up to 15,000 hours of use (in Eco mode) to reduce cost of ownership. Express IT Technologies

• Portable size: Weighs less than ~8 lbs in a small form factor, making it easy to move between rooms. Express IT Technologies

Key features listed:

• Full HD 1080p with HDR compatibility. Express IT Technologies

• Short throw; super bright 4,000 lumens. Express IT Technologies

• 15,000-hour lamp life; built-in 10W speaker. Express IT Technologies

• Versatile connectivity (HDMI, VGA, USB power, audio out). Express IT Technologies
  

  Why this is better than other projectors

  Here’s why this model stands out (using info from the product page):

  • Short throw lens: Many projectors require considerable distance from screen/wall to project a large image. This model’s ~0.5:1 lens allows a large 120″ image from only ~4.5 ft away, which is excellent for smaller spaces or rooms where mounting far back isn’t possible.

  • High brightness in typical room light: The 4,000 lumens rating means it can perform well in rooms that aren’t darkened—valuable for business and classroom settings.

  • 4K HDR input capability: Although output is 1080p, the ability to accept 4K HDR sources ensures future-proofing and better image quality from modern sources.

  • Long lamp life: Up to 15,000 hours means lower maintenance and replacement cost, which is a benefit over many cheaper models.

  • Built-in speaker and full connectivity: The inclusion of a 10W speaker and multiple input/output ports (HDMI, VGA, audio, RS-232) gives flexibility and simplifies setup, especially for mobile or multi-room use.

  • Portability: Being relatively light and compact makes it more flexible than large permanent installation models.

  In summary: For users needing a bright, flexible projector in tighter spaces (meeting rooms, classrooms) it offers more convenience and performance than many standard-throw, classroom-only or cheaper business projectors.
  
  

  Specs:

  Here are the main technical specifications from the product page:

  • Throw Ratio: ~0.5:1 (Short throw, large image from short distance) Express IT Technologies

  • Brightness: 4,000 lumens (suitable for well-lit rooms) Express IT Technologies

  • Resolution: Full HD 1920×1080 native; supports 4K HDR input. Express IT Technologies

  • Contrast Ratio: ~50,000:1 (for richer blacks and better visual impact) Express IT Technologies

  • Lamp Life: Up to 15,000 hours (in Eco mode) Express IT Technologies

  • Speaker: Built-in 10W speaker Express IT Technologies

  • Connectivity: 2× HDMI, VGA in/out, Audio in/out, RS-232 control, USB-A (for power) Express IT Technologies

  • Weight/Portability: Weighs less than ~8 lbs (approx) in a small form factor for portability. Express IT Technologies

  Initial Feedback

  From the product page we don’t get extensive user-reviews data visible beyond “Reviews” placeholder. But initial impressions based on the listed features suggest:

  • Strong for business/education because of brightness + short throw + connectivity + built-in speaker.

  • Users in smaller rooms or mobile setups will appreciate the portability and lamp life.

  • Those dealing with very bright ambient light or needing larger than 120″ image or needing zoom flexibility might find limitations (short-throw tends to reduce zoom/placement flexibility).

  • It’s pitched as higher-end business/education projector (given its price and specs) rather than basic home-theatre or ultra-budget model.