The BenQ LH730 is a 4000-lumen LED projector made for medium-sized conference rooms. It offers Full HD (1080p) resolution, covers 98% of the Rec.709 color gamut for accurate colors, and uses a long-lasting LED light source that can run up to 20,000 hours (or 30,000 in eco mode).
It’s built for easy setup with a 1.2x optical zoom, horizontal and vertical digital keystone correction, and a corner fit feature to get a perfectly square image. The menus are straightforward, and the included remote makes control simple.
Image quality is sharp and vibrant, with enough resolution for most presentations. The LED light source means low maintenance and no worries about fading colors over time.
According to BenQ’s Bob Wudeck, the LH730 is the first affordable, commercial-grade projector that meets the high demands of business environments—offering bright, accurate colors, 24/7 operation, and zero maintenance.
| BenQ LH730 | |
|---|---|
| Price | $1299.00 |
| Technology | DLP |
| Displayed Resolution | 1920 x 1080 |
| Brightness (Manufacturer Claim) | 4000 ANSI Lumens |
| Light Source | 4LED |
| Contrast | 500,000:1 |
| Zoom Lens Ratio | 1.2:1 |
| Lens Shift | None |
| Light Source Life | 20,000 Hrs |
| Sound System | 10-watt mono |
| Weight | 11.7 lb |
| Warranty | Two (2) Years |
OVERVIEW
The BenQ LH730 weighs just 11.6 lbs, making it smaller than most business projectors we’ve reviewed. Inside the box, you only get a power cord and a remote—keeping things simple. BenQ clearly focused on making this projector easy to set up and use.
It can project up to a massive 300″ screen, making it great for medium to large venues. At $1,200, it offers more features than most projectors in its price range. While it can’t upscale to 4K, you still get 1080p resolution, HDR10 support, 3D playback, and even 120fps capability.
Here’s how it compares to other models in the LH series:
LH730 – $1,299 | 4000 lumens | 4LED light source | 98% Rec.709 color
LH720 – $1,799 | 4000 lumens | Laser light source | 90% Rec.709 color
LH770 – $3,199 | 4000 lumens | Laser light source | 95% Rec.709 color
The LH730 works with 3D content from Blu-ray players, broadcasts, and gaming consoles. In education, 3D projectors are becoming popular for subjects like design, engineering, and technical trades, as they boost engagement and retention.
For presentations, BenQ includes custom picture modes:
Infographic Mode – makes charts and graphs look extra sharp.
Presentation Mode – perfect for clean, bright slides.
Spreadsheet Mode – improves visibility of small text in large data sheets.
The BenQ LH730 is built for 24/7 operation, making it perfect for businesses that need a dependable projector in places like lobbies, meeting rooms, or anywhere it will be running all day. Its sealed optical engine keeps dust and dirt out, and the 4LED light source lasts up to 20,000 hours—or 30,000 hours in Eco mode.
When powered on, the projector defaults to the Wireless Display input, showing instructions for connecting wirelessly. To use this feature, you’ll need a separate Wi-Fi dongle that plugs into the USB port. Without it, the projector doesn’t have built-in Wi-Fi, but it can still connect via a wired network.
Key Features:
4,000 ANSI lumens brightness
4LED light source
Native 1080p resolution with modes for presentations
Up to 20,000-hour light source life (30,000 in Eco mode)
Supports screen sizes up to 300”
Digital image shrinking and shifting
3D compatible
120Hz refresh rate for smooth high-frame-rate video
HARDWARE
CHASSIS
The BenQ LH730 is light at just 11.6 pounds, making it easy to move between locations. It’s designed for ceiling mounting, which offers several benefits. Mounting it overhead removes shadows and obstructions from tables, keeps the projector at a consistent height and angle for a uniform viewing experience, and ensures good ventilation for 24/7 use without overheating.
The projector’s design fits its main purpose perfectly, and the ceiling mount setup works well for many situations.
On the front, you’ll find the lens and a large ventilation grill. The lens is recessed into the body to protect it from scratches, bumps, and dust. Another vent is located on the right side for extra airflow.
The BenQ LH730’s controls and menu buttons are located on the left side, along with indicator LEDs for Power, Temperature, and Light. You’ll also find another vent on this side. On top are the zoom and focus controls. Flip the projector over, and you’ll see two adjustable front feet and the mounting screw holes.
All the connection ports are on the back, along with the power socket. The built-in 10W speaker is also on the back, to the left of the ports.
Available ports:
2× HDMI in (HDMI-1 & HDMI-2, both 2.0b/HDCP2.2)
1× LAN (RJ45)
2× USB Type-A
USB A-1: 2.0 / 1.5A power supply
- USB A-2: 2.0 / 1.0A power supply or wireless dongle
1× RS232 in (DB-9 pin)
1× Audio out (3.5mm mini jack)
LENS
The BenQ LH730 uses a high-quality all-glass, low-dispersion lens with a special coating to reduce color fringing (chromatic aberration). It offers 1.2x optical zoom with a throw ratio of 1.3–1.56. While there’s no vertical or horizontal lens shift, the projector does have digital shrink and shift options to help fine-tune image alignment.
Throw Distance for 16:9 Screens:
80″: 7.6 ft – 9.1 ft
100″: 9.4 ft – 11.3 ft
120″: 11.3 ft – 13.6 ft
150″: 19.5 ft – 23.6 ft
200″: 26 ft – 31.6 ft
300″: 39 ft – 47.3 ft
Remote Control:
The remote is compact and easy to hold, with large rubber buttons. At the top are the input buttons, followed by navigation arrows. The lower section has buttons for volume, zoom, and page control.
The remote includes a handy “ECO BLANK” button that turns the screen black without shutting the projector down. Press OK, and the image comes back instantly—no need to wait for it to power off and on.
There’s also a “FREEZE” button, perfect for presentations. It locks the current slide on the screen so you can work on your computer in the background, then unfreeze when you’re ready. This way, your audience only sees what you want them to see.
MENUS
When you turn on the BenQ LH730, it starts with the wireless display menu. This screen gives step-by-step instructions for connecting with the optional Wi-Fi dongle, covering Windows, macOS, iOS, and Android. Without the dongle, there’s nothing to do here.
Press the MENU button on the remote to access six main sections: Picture, Audio, Display, Installation, System, and Information. There’s also a menu button on the side of the projector in case you don’t have the remote.
The Picture menu includes brightness, contrast, sharpness, and advanced color controls. Modes include Bright, Presentation, Spreadsheet, and Video Conference—noticeably no movie mode, reinforcing that this is a business-focused projector.
The Audio menu is simple—just volume control and output selection. The Display menu handles 3D settings, HDMI options, aspect ratio, and source naming.
Under Installation, you’ll find tools for setup, like Corner Fit, which lets you perfectly align the image to your screen. The System menu has security, background, networking, and menu settings. Tip: set the menu timeout to “never” instead of the default 20 seconds, which can be annoying.
PERFORMANCE
COLOR REPRODUCTION
Like most business projectors, the BenQ LH730 is built to stay bright and clear even in well-lit rooms. In classrooms, offices, or retail spaces, colors look vivid and punchy. With the lights off, you might notice that colors can look slightly lighter than they should in the default modes.
A big surprise is its 98% Rec.709 color coverage, a feature more common in home theater projectors. Thanks to its 4LED design, it can deliver richer, more accurate colors than many business laser projectors—perfect for taking full advantage of its HDR support.
The LH730 has several preset picture modes. For HDR10 content, these modes are disabled, and you’ll automatically be in HDR10 mode. It also supports HLG and 3D, each with their own modes.
For the best color in SDR, choose one of the two USER modes, and tweak it in the advanced color settings. You’ll find tools like Gamma, Grayscale, and CMS for creating custom profiles—even good enough for casual movie watching.
BRIGHT mode: maximum brightness for SDR.
PRESENTATION mode: better color accuracy in bright environments.
BRIGHTNESS
The BenQ LH730 is rated at 4000 ANSI lumens, and in testing, it came very close—3942 ANSI lumens in its brightest mode (BRIGHT) with Light Output set to Normal (100%). This means it can easily project a sharp, bright image up to 300 inches without dimming at the edges. I didn’t notice any hotspots or uneven brightness during testing.
Its 4LED light source is compact, low-maintenance, and delivers excellent color reproduction. In recent years, LED brightness has improved a lot, and the LH730 is one of the brightest LED projectors tested.
You get four Light Source modes: NORMAL, ECO, SMART ECO, and CUSTOM. In CUSTOM, you can adjust output from 70% to 100%.
Measured Brightness (Light Source: NORMAL)
Bright: 3942 lumens
Presentation: 3170 lumens
Spreadsheet: 3052 lumens
Video Conference: 3420 lumens
Infographic: 3673 lumens
BLACK LEVEL AND SHADOW DETAIL
The photos above show how the BenQ LH730 handles dark scenes. The blacks look more like dark gray than deep black, which is normal for a bright business or education projector. However, the LH730 does a good job showing details in shadowy areas.
To get better dark scenes in a dark room, you can switch the Light Source to SMART ECO mode, which adjusts brightness automatically. You can also try higher GAMMA settings like 2.4, 2.5, or 2.6 for deeper blacks.
If you want to fine-tune BRIGHTNESS, CONTRAST, and SHARPNESS for your space, there are free test patterns on Murideo’s website and YouTube channel. Check out their video called Optimize The Image of a Projector or TV Using Free Murideo Test Patterns. They also offer written guides in the resource section on their site.
VIDEO IMAGE QUALITY
To test the BenQ LH730’s picture quality, I tried different devices like a Blu-ray player, Chromecast, and a PC with Plex. I watched local files, Blu-rays, and streamed from Netflix and YouTube. What I found is that no single device uses all the projector’s features perfectly.
The LH730 supports HDR10 and HLG formats and can automatically adjust HDR brightness based on the input. You can also manually change the HDR BRIGHTNESS setting—higher makes the image brighter but can wash out highlights, while lower keeps more detail but makes the image darker.
Devices like Apple TV, Chromecast, and Roku work well for 1080p HDR at 60Hz. But to use 120Hz or 3D, you’ll need something like a Blu-ray player or a PC. Since this projector maxes out at 1080p, most people will probably stick with simpler devices, so 120Hz and 3D might not get much use.
The projector performs great in bright rooms, which is one of its strengths. On screens bigger than 100 inches, small details might get a little fuzzy, but that’s normal for 1080p.
TEXT AND PRESENTATION QUALITY
When you connect a laptop to the BenQ LH730 via HDMI or wireless cast, the screen might start smaller than the full projector size. But if your laptop is set to Full HD (1920 x 1080), the text looks sharp and easy to read—even small fonts like 8 points have clear edges and little blur.
You can use the projector’s zoom to make your laptop screen fill more of the projection, so all your text is easy to see from across the room.
The projector’s picture modes are designed for different types of presentations like charts, graphs, slides, and text. Each mode makes the content clear and easy to read, enhancing whatever you’re showing.
Audio Quality
The LH730 has a single 10W speaker. It’s not super loud but works well for small to medium rooms like conference spaces or classrooms. The sound is clear with good volume and little distortion—perfect for presentations, lectures, or video calls.
The fan noise is low—a quiet hum that won’t distract you. The manufacturer says it runs at 32 dB in Normal mode and 28 dB in Eco mode, which is pretty quiet and good for places where you need to focus on audio.
In short, while the built-in speaker isn’t super powerful, it’s clear enough for most small to medium rooms. Plus, the low fan noise means nothing will interrupt your presentation or movie.
SUMMARY
The BenQ LH730 is a 4000-lumen 4LED projector made for business use. It offers up to 30,000 hours of nearly maintenance-free operation and covers 98% of the REC709 color space. BenQ says the colors look brighter and more vibrant thanks to the H-K (Helmholtz–Kohlrausch) effect, giving you rich, accurate colors even in rooms with some light. Features like 2D & Auto Vertical Keystone, Corner Fit, and Digital Shrink make it easy to install and adjust.
BenQ also created special picture modes that make text and graphics look great, perfect for presentations full of charts and data.
The LH730 can work wirelessly with an optional Wi-Fi dongle, letting you stream Full HD content from mobile devices. It even supports up to four split screens for collaborative meetings.
A similar option at this price is the Epson Pro EX10000. Both projectors cost about $1,299 and have native 1080p resolution for clear images. The Epson is a bit brighter at 4,500 lumens, while the BenQ has 4,000 lumens.
The Epson uses a laser light source, while the BenQ uses 4LEDs with a 20,000-hour lifespan (up to 30,000 hours in Eco mode).
Both projectors have keystone correction and multiple ports like HDMI and USB. The Epson has USB Plug ‘n Play for easy audio and video setup, and the BenQ offers LAN (RJ45) for network connections.
If you need extra brightness and prefer laser, the Epson might be your pick. But if you want better contrast, advanced picture modes, and a projector built for 24/7 use, the BenQ LH730 is a strong choice. Think about your room, screen size, and how you’ll use it to decide which fits you best.
The BenQ LH730 fills an important spot in the projector market. It’s one of the brightest 4LED projectors we’ve tested. With 4,000 lumens, great picture quality, and low maintenance—all at a good price—it’s a solid choice for meetings or classrooms. Its long 30,000-hour LED life and flexible setup options add to its appeal.
PROS
Bright 4,000 lumens
98% Rec. 709 color accuracy
No maintenance needed
Easy to install with helpful built-in tools
Long LED life up to 30,000 hours in eco mode
Picture modes tailored for different presentations
CONS
No built-in WiFi
No 4K resolution
BenQ LH730 – SPECIFICATIONS
| Full Specifications | |
|---|---|
| Projector Model | BenQ LH730 |
| Price (MSRP) | $1299 |
| Imager Type | DLP |
| Displayed Resolution | 1920 x 1080 pixels |
| Native Resolution | 1920 x 1080 pixels |
| Brightness (Manufacturer Claim) | 4000 ANSI lumens |
| Light Source Type | Laser Phosphor |
| Light Source Life | 20,000 hours |
| Contrast Ratio | 500,000:1 (Dynamic) |
| Zoom Lens Ratio | 1.2x |
| Power Zoom/Focus | No |
| Lens Shift | No |
| Interchangeable Lens | No |
| Ultra-Short Throw | No |
| Native Aspect Ratio | 16:9 |
| HDTV/4K | 720P/1080i/1080P, 2160P |
| DVI or HDMI | HDMI |
| 3D | Yes |
| Blu-Ray 3D | Yes |
| Speakers | 10 watt Mono |
| Noise Level (-dB) | 33 dB (28 dB Eco) |
| Low Lag Gaming | Yes (33.4 ms at 1080p60) |
| Smart Functionality | None |
| Business | Yes |
| Classroom | Yes |
| Portable | No |
| Special Features | 2D & Auto Vertical keystone, Corner Fit, and Digital Shrink |
| Networking | No |
| Dimensions (HxWxD) | 16.5″ x 5.2″ x 11.3″ (420 x 131.7 x 286.7mm) |
| Weight | 11.7 lb |
| Warranty | 1 year |