Software
OSS
OMS

Our use of cookies

We use necessary cookies to make our website work. We’d also like to use analytics and functional cookies which help us make improvements to the website by measuring how you use it, and to enable our website to offer you additional functionality.

More information on how we use cookies can be found in our cookie policy.

Home Page > Product > Projectors > Business and Education > LH351

Optoma LH351 Full HD 3500 Lumens Business and Education Projector

LH351

Optoma LH351 Full HD 3500 Lumens Business and Education Projector

Optoma LH351 is a versatile Full HD projector with 3500 lumens of brightness, designed for business, education, and entertainment environments. With a long-lasting, lamp-free 4LED light source, it delivers bright, vivid visuals and reliable performance in meeting rooms, classrooms, and a wide range of business and entertainment settings—including DIY golf simulation setups.
  • 3500 lumens for clear visuals in ambient lighting conditions
  • Centralized control with Optoma Management Suite Cloud (OMSC)
  • Up to 30,000 hours lifespan for long-lasting performance
  • Eco-conscious design for energy-efficient operation
LH351
Features Specs Downloads

Ideal for Business, Education, and More

Essential Features for Everyday Projection

Designed for easy projector setup, simple operation, and reliable performance across a wide range of environments.
Over-the-Air Update
Compact Size
4LED
Bright, Clear Images for Ambient Light
24/7 and Versatile
Optoma Management Suite 
HDR Compatible
Immersive Golf
Powered by Optoma
Long Lifespan

Effortless Setup and Reliable, Long-Lasting Performance

LH351 projector 4LED long life light source without replacement

No Lamp Replacement

4LED light source lasts up to 30,000 hours without replacement.
LH351 regular throw projector and flexible positioning for any environment

Flexible Setup for Any Space

Easily install or replace without moving mounts. Compact and lightweight, it’s easy to move between rooms or store when not in use—ideal for flexible business and education environments.
LH351 pre-set modes supported by DLP technology for accurate and stable color performance

Optimized Display for Business and Education

Get consistent, clear visuals for presentations, lessons, and more with pre-set modes—enhanced by DLP technology for reliable, accurate image quality.

Vivid, Clear Projection for Ambient Light Environments

With 3500 lumens of brightness, enjoy sharp Full HD visuals that stay clear and vibrant in meeting rooms, classrooms, and other well-lit spaces.
LH351 FHD and 3,500 lumens of brightness in the meeting room
cover img

Immersive Golf Simulation

Powered by Optoma

Designed for home and commercial golf simulators, Optoma projectors deliver bright, accurate visuals, real time response, and flexible installation for an immersive golf sim experience.

Optimizes color and contrast to better represent course environments, helping improve visibility of terrain, ball movement, and overall scene clarity during play.

LH351 supports multiple aspect ratios (16:9, 16:10, 4:3, 1:1) and geometric correction to ensure your projection fills the screen perfectly.

4LED brightness maintains image clarity in rooms with ambient light, helping keep course details visible throughout use.

Man is using Optoma Management Suite Cloud

Manage, Monitor, and Diagnose — All from One Place

Optoma Management Suite Cloud (OMSС) is an intuitive display management solution, designed to streamline operations by monitoring, diagnosing and controlling audio visual displays from anywhere via a single platform. With an easy-to-use interface and 24/7 real-time monitoring, OMSC enables users to check the status of display devices and make configurations to optimise performance.
Easy update for LH351 with OTA

Stay Up to Date with OTA Updates

Supports over-the-air (OTA) firmware updates, allowing the projector to be updated without USB devices. New features, performance improvements, and security updates can be installed with minimal effort, helping reduce maintenance and IT workload.

Designed for Sustainability

Aligned with Optoma’s Green Promise, this projector uses an energy-efficient, mercury-free 4LED light source to reduce power consumption and lower total cost of ownership. Built with over 50% recycled metal and PCR materials, and shipped in 100% recyclable packaging, it supports sustainability goals while delivering long-term operational savings.
50% Recycled metal used for Optoma business projectors
100% recyclable packaging used for Optoma business projectors

Eco-friendly packaging

Eco-friendly packaging produced with FSC-certified paper and made with recycled and reusable materials.
50% PCR materials used for Optoma business projectors

Sustainable materials

Use of environmentally, friendly materials for products chassis and during production
Specification
Display
Technology
DLP®
Resolution
FHD (1920x1080)
Brightness
3,500 Lumens
Contrast ratio
300,000:1
Native aspect ratio
16:9
Aspect ratio - compatible
4:3,16:10, Full, Native, Auto
Keystone correction - horizontal
+/-30°
Keystone correction - vertical
+/-30°
Horizontal scan rate
15~135 KHz
Vertical scan rate
24~120Hz
Uniformity
85%
Screen size
30” ~ 300”
Light source type
4LED
Light source life
30,000 hours (Eco mode)
Throw ratio
1.49 ~ 1.64
Projection distance
1.96 m ~ 4.89 m
Zoom
1.1x
Zoom type
Manual
Focal length
22 mm ~ 24.1 mm
Native offset
102.5% ±3%
Lens shift
n/a
Connections- Inputs
HDMI 2.0 x2, VGA x1, Audio in x1
Connections - Outputs
USB-A power 2A x1, Audio 3.5 mm x1, VGA x1
Connections - Control
RS232 x1, 1LAN x1
Noise level (min)
29 dB(A)
Noise level (max)
35 dB(A)
PC compatibility
VGA,SVGA,XGA,720p,WXGA,SXGA,SXGA+,UXGA,1080p,WUXGA
2D
NTSC,PAL,SECAM,SDTV,HDTV,UHD
3D compatibility
Auto, SBS, Top and Bottom, Frame Sequential, Frame Packing
Security
Kensington Lock, Password protected interface
OSD / display languages
27 languages: Arabic, Czech, Danish, Dutch, English, Farsi, Finnish, French, German, Greek, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese
24/7 operation
Yes
360° operation
Yes
Operating conditions
Max Temperature(operating):0 ~ 40°C; Tolerance +/- 2°C, Max Altitude(operating): 10,000 ft., for 0°C~30°C,​
Max humidity(operating): 80% RH, non-condensing
Remote control
Backlit remote control
Speaker count & Watts per speaker
1 x 10W
Input lag
33.7ms (4K/60Hz)​
16.7ms (1080P/60Hz)​
8.4ms (1080P/120Hz)
In the box
Power cord
Remote control
2 x AAA batteries (varies by region)
Quick start user manual
LAN control
Yes
Power supply
AC 100 ~ 240V, 50 ~ 60Hz
Power consumption (standby)
≤0.5 W
Power consumption (eco mode)
130W @100VAC
124W @240VAC
Power consumption (bright mode)
226W @100VAC
212W @240VAC
Dimensions (W x D x H)
W/o feet: 307 x 228 x 114.4 mm (12.09 x 8.98 x 4.50 inches) ​
With feet: 307 x 228 x 125.4 mm (12.09 x 8.98 x 4.94 inches)
Gross weight
4.9 kg (+/- 10%) / 10.8 lbs
Net weight
3.1 kg (+/- 10%) / 6.8 lbs
Optoma Management Suite Cloud
Yes
Downloads
Datasheets
About Optoma
Info
Stay Connected
© 2026 Optoma Corporation