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BenQ LH830ST specifications and in-depth review

BenQ LH830ST

Manufacturer: BenQ

The BenQ LH830ST is a short-throw projector built around a laser light source, making it a practical choice for installations where space is limited. Weighing 3,400 g and measuring 279.2 mm wide by 229.3 mm deep, it has a relatively compact footprint for a unit in its class. With a maximum projection size of 180″, it can fill large screens from a short distance, and manual focus gives the user direct control over image sharpness.

On the connectivity side, the BenQ LH830ST includes one HDMI port and two USB ports, along with Wi-Fi, Bluetooth, AirPlay, Chromecast, and Miracast support for flexible wireless use. HDR10 and HLG are both supported, and the 10-bit color depth allows for a wider tonal range in compatible content. The unit draws 320 W during operation and drops to just 0.5 W in standby, while audible noise is rated at 33 dB standard and 29 dB in eco mode. A built-in speaker with 1 x 2 W audio output and a remote control are included, and the onboard smart TV platform adds standalone streaming capability.

Pros
  • Laser light source eliminates the need for traditional lamp replacements and supports a rated life of 200 hours
  • 4,000 ANSI lumens output allows use in well-lit environments where many projectors struggle
  • Short minimum throw distance of 0.5 m makes it suitable for installations with limited space between the projector and the screen
  • Built-in smart TV platform enables standalone streaming without requiring an external media device
  • Wireless connectivity includes Wi-Fi, Bluetooth, AirPlay, Chromecast, and Miracast, covering a wide range of casting and streaming scenarios
  • HDR10 and HLG support alongside 10-bit color depth allows for richer tonal rendering with compatible content
Cons
  • Single built-in speaker at 1 x 2 W provides minimal audio output, making an external sound system effectively necessary for any serious viewing
  • No motorized focus or zoom means manual adjustments are required every time the projector is repositioned
  • No RJ45 port means a wired network connection is not an option
  • Only one HDMI port limits simultaneous wired source connections
  • Lamp life in eco mode is rated at just 0.5 hours, which is unusually low and makes eco mode impractical for extended use
Who is this for?

This projector is well matched to business and professional installation environments where a bright, reliable image is a priority — its 4,000 ANSI lumens output makes it capable of handling ambient light conditions that would wash out lower-lumen units. The short minimum throw distance of 0.5 m makes it particularly practical for rooms where wall-to-projector spacing is limited, such as conference rooms or classrooms. Users who want to stream content without a dedicated media player will also benefit from the built-in smart TV platform and the broad wireless connectivity options including AirPlay, Chromecast, and Miracast.

Who is this NOT for?

Users looking for a home cinema experience with immersive audio will find the single 2 W speaker insufficient, as it offers no stereo separation and lacks Dolby Atmos support, meaning a separate sound system would be required. The absence of motorized focus and zoom makes this a poor fit for installations requiring frequent repositioning, since every adjustment involves manual recalibration. Additionally, with only one HDMI port and no RJ45 connectivity, users who need to connect multiple wired sources simultaneously or prefer a stable wired network connection will find the setup limiting.

General info:

lamp life 200 h
audible noise 33 dB
has laser light source ✓
audible noise (eco) 29 dB
operating power consumption 320W
lamp life (eco mode) 0.5 h
width 279.2 mm
height 120.5 mm
thickness 229.3 mm
weight 3400 g
standby power consumption 0.5W
volume 7714.47748 cm³

The BenQ LH830ST uses a laser light source with a rated lamp life of 200 hours, dropping to just 0.5 hours in eco mode. Operating power consumption sits at 320 W, while standby draw is a minimal 0.5 W. In terms of acoustics, the unit produces 33 dB of audible noise under standard operation and 29 dB in eco mode. Physically, it measures 279.2 mm wide, 120.5 mm tall, and 229.3 mm deep, with a total weight of 3,400 g and a volume of approximately 7,714.48 cm³.

Projection quality:

ANSI lumens 4000 lumens
output resolution 1080p
response time 16.7 ms
has motorized focus ✕
maximum projection size 180"
has motorized zoom ✕
supports HDR10+ ✕
bit depth 10-bit
has manual focus ✓
minimum throw distance 0.5 m
refresh rate 60Hz
supports Dolby Vision ✕
supports HDR10 ✓
supports HLG ✓

The BenQ LH830ST delivers 4,000 ANSI lumens of brightness at a native 1080p output resolution, with a maximum projection size of 180″ and a minimum throw distance of 0.5 m. Focus is handled manually, as neither motorized focus nor motorized zoom are available. The refresh rate runs at 60 Hz with a response time of 16.7 ms, and 10-bit color depth is supported alongside HDR10 and HLG for broader tonal compatibility. Dolby Vision and HDR10+ are not supported.

Connectivity:

HDMI ports 1
has AirPlay ✓
Has Bluetooth ✓
supports Wi-Fi ✓
USB ports 2
has Chromecast built-in ✓
has a VGA connector ✕
has a DVI connector ✕
supports Miracast ✓
RJ45 ports 0
Has S/PDIF Out port ✓

The BenQ LH830ST offers a mix of wired and wireless connectivity options. On the wired side, it includes one HDMI port and two USB ports, along with an S/PDIF output for digital audio; there is no VGA connector, DVI connector, or RJ45 port. Wireless connectivity covers Wi-Fi, Bluetooth, AirPlay, Chromecast built-in, and Miracast, giving users a broad range of options for streaming and screen mirroring without a physical cable.

Features:

has stereo speakers ✕
has a remote control ✓
has built-in smart TV ✓
has a built-in speaker ✓
audio output power 1 x 2W
has Dolby Atmos ✕

The BenQ LH830ST includes a built-in smart TV platform, allowing it to operate as a standalone streaming device without an external source. A single built-in speaker provides audio output at 1 x 2 W; it is not a stereo configuration, and Dolby Atmos is not supported. A remote control is included for convenient operation.

Final Verdict

The BenQ LH830ST is a purpose-built short-throw projector that delivers where it counts for professional and semi-permanent installations. Its 4,000 ANSI lumens laser light source ensures a consistently bright image even in challenging lighting conditions, while the compact throw distance and broad wireless connectivity make it a genuinely practical choice for conference rooms, classrooms, and similar shared spaces. The built-in smart TV platform adds standalone versatility that many competing form factors lack. That said, users should go in with realistic expectations around audio — the single 2 W speaker and absence of stereo output mean external sound is a practical necessity — and the manual-only focus and zoom will suit fixed installations far better than flexible, frequently moved setups. On balance, the LH830ST is a well-specified unit for the environment it is designed for, and those deploying it in the right context will find its strengths well aligned with real-world demands.

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