BenQ LK830ST 4K Short Throw Projector

Description

About the BenQ LK830ST 4K Short Throw Projector

The BenQ LK830ST 4K Short Throw Projector is ideal when you need a large, sharp image without placing the projector far back in the room.

The LK830ST also includes 93% Rec.709 colour coverage, HDR10 and HLG support, low input lag, Golf picture mode, IP6X sealed engine protection, 2D keystone correction, Screen Fill modes, and network control. As a result, it suits both serious simulation setups and flexible commercial AV installations.

What We Think

At Rapallo, the BenQ LK830ST is a very practical projector for customers who need a big 4K image from a short distance.

The standout feature is the 0.496 throw ratio. This lets the projector create a large image from close to the screen. Therefore, it is especially useful in golf simulators, smaller media rooms, training spaces, interactive installations, and locations where a standard projector would sit too far back.

We also like the brightness. With 4,000 ANSI lumens, the LK830ST has enough output for large screens and rooms with some ambient light. It will still perform best with controlled lighting, but it is much more flexible than lower-brightness home cinema projectors.

The laser light source is another big advantage. There is no traditional lamp to replace, and the long light-source life makes it well suited to high-use environments. Also, the IP6X sealed engine gives better protection in spaces such as garages, training rooms, commercial venues, and simulator bays.

There are some setup points to note. The lens is fixed, so there is no optical zoom. Also, there is no mechanical lens shift. So, projector position and screen planning are important. However, with careful installation, the LK830ST is a strong solution for sharp, bright, short throw 4K projection.

 

 

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The BenQ LK830ST 4K Short Throw Projector Is Ideal For

• Golf simulator rooms
• Short throw 4K projection setups
• Large-screen sport and gaming
• Training rooms and education spaces
• Commercial displays and simulation walls
• Digital art, gallery, and interactive installations
• Customers needing a bright projector in a compact room

 

What the Experts Say

• ProjectorCentral reviewed the LK830ST and described it as one of the best all-around small commercial projectors it had evaluated. It praised the mix of short throw optics, 4K imaging, low latency, Golf mode, and factory white-level calibration for multi-projector setups.
• Projector Reviews reviewed the LK830ST as a 4K short throw golf simulation projector. It highlighted the 4,000 ANSI lumens brightness, 4K UHD resolution, 0.5 short throw lens, 93% Rec.709 coverage, Golf mode, Screen Fill feature, and IP6X sealed engine.

 

Frequently Asked Questions

1. What is the BenQ LK830ST?
   The BenQ LK830ST is a 4K UHD short throw laser projector with 4,000 ANSI lumens brightness, a 0.496 throw ratio, laser light source, low input lag, and IP6X sealed engine protection.
2. Is the LK830ST good for golf simulators?
   Yes, it is very well suited to golf simulators. The short throw lens, 4K resolution, Golf mode, high brightness, Screen Fill modes, and IP6X sealed engine make it a strong fit for simulator bays.
3. What is the throw ratio of the BenQ LK830ST?
   The throw ratio is 0.496. This means it can create a large image from a short distance, which is useful where room depth is limited.
4. How bright is the BenQ LK830ST?
   The LK830ST is rated at 4,000 ANSI lumens. This gives it enough brightness for large images and rooms with some ambient light.
5. Does the LK830ST have a laser light source?
   Yes, it uses a laser light source. BenQ lists light source life at 20,000 hours in normal mode and 30,000 hours in Eco mode.
6. Does the BenQ LK830ST support HDR?
   Yes, it supports HDR10 and HLG. It does not list Dolby Vision or HDR10+ support.
7. Does the LK830ST have optical zoom or lens shift?
   No, the LK830ST has a fixed lens with manual focus. It does not have optical zoom or mechanical lens shift. Therefore, careful projector placement is important.
8. Is the BenQ LK830ST good for gaming?
   Yes, it has low input lag. BenQ lists 16.7ms at 4K/60Hz and 4.2ms at 1080p/240Hz, making it suitable for gaming and simulation use.
9. Does the LK830ST have built-in Wi-Fi?
   No, built-in Wi-Fi is not listed. Network control is available through RJ45 LAN, and optional accessories may be required for wireless display functions depending on the setup.
10. What inputs does the LK830ST have?
    It includes two HDMI 2.0b inputs with HDCP 2.2, RJ45 LAN, RS232, two USB-A ports, and a 3.5mm audio output.
11. Can the LK830ST be ceiling mounted?
    Yes, it can be ceiling mounted with a suitable mount. BenQ also lists an optional universal ceiling mount, model CM00G3.
12. Who is the BenQ LK830ST best suited to?
    It is best for customers who need a bright 4K short throw laser projector for golf simulation, sport, gaming, training rooms, education, commercial displays, or immersive AV installations.

 

Key Features

4K UHD Resolution

The LK830ST supports 4K UHD 3840 x 2160 resolution. This gives a sharper and more detailed image than Full HD, especially on larger screens used for golf simulation, presentations, sport, movies, and immersive displays.

4,000 ANSI Lumens Brightness

With 4,000 ANSI lumens, the LK830ST is bright enough for large-screen projection in many real-world spaces. It is especially useful where some ambient light may be present.

0.496 Short Throw Ratio

The short throw lens allows a large image from a short distance. BenQ lists the throw ratio at 0.496, while B&H describes it as approximately 0.5:1. This makes it ideal for golf simulators, classrooms, meeting rooms, and compact installation spaces.

Laser Light Source

The laser light source is rated for 20,000 hours in normal mode and 30,000 hours in Eco mode. Therefore, it reduces long-term maintenance compared with traditional lamp projectors.

93% Rec.709 Colour Coverage

BenQ lists the LK830ST with 93% Rec.709 colour coverage. This helps create more natural colour for sport, simulation, video, and presentation content.

HDR10 and HLG Support

The projector supports HDR10 and HLG. This gives it compatibility with common HDR video sources, including streaming devices, media players, and some game consoles.

Low Input Lag

BenQ lists input lag at 16.7ms for 4K/60Hz, 16.7ms for 1080p/60Hz, 8.3ms for 1080p/120Hz, and 4.2ms for 1080p/240Hz. As a result, the LK830ST is a strong choice for simulation and gaming use.

Golf Picture Mode

The LK830ST includes a dedicated Golf picture mode. This is useful for golf simulator setups where fairways, greens, hazards, and ball tracking need to remain clear and natural.

Screen Fill Modes

Screen Fill supports 4:3, 16:9, 16:10, 1:1, and 5:4 aspect ratios. Therefore, the projector can better match simulator screens, impact screens, education displays, and commercial projection layouts.

IP6X Sealed Engine

The LK830ST has an IP6X sealed engine with optional filter support. This helps protect the optical system from dust and supports more stable long-term operation in demanding spaces.

2D Keystone Correction

The projector supports 2D keystone correction, with auto vertical correction and manual horizontal correction up to ±30 degrees. This gives installers more flexibility when projector placement is not perfect.

Network Control and OTA Updates

The LK830ST includes RJ45 LAN control and supports firmware updates over the network. This is useful for commercial, education, simulator, and multi-projector installations where easy management matters.

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Perfect System Match with the BenQ LK830ST

The BenQ LK830ST is a strong match for a golf simulator system where the projector needs to sit close to the screen. Its short throw lens, 4K resolution, Golf mode, and 4,000-lumen brightness make it especially useful for simulator bays and multi-use entertainment spaces.

It also suits commercial AV setups. For example, use it for education, digital signage, training, interactive projection, or multi-projector displays where short throw placement and IP6X dust protection are helpful.

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Product Comparison Snapshot

Model	Best For	Key Difference
BenQ AH500ST	Budget golf simulator setups	1080p resolution, similar short throw concept
BenQ LK830ST	4K short throw simulator and commercial projection	4K UHD, 4,000 lumens, 0.496 throw, laser light source
BenQ AK700ST	Larger simulator rooms needing 4K	Longer throw range than LK830ST
BenQ LK936ST	Brighter premium simulator systems	More brightness, but needs more distance from screen

 

Specifications

Brand: BenQ

Model: LK830ST

Product Type: 4K Short Throw Laser Projector

Projection System
DLP

Resolution
4K UHD
3840 x 2160

Brightness
4,000 ANSI lumens

Native Aspect Ratio
16:9

Contrast Ratio
3,000,000:1, FOFO

Display Colour
30-bit
1.07 billion colours

Light Source
Laser

Light Source Life
20,000 hours, normal mode
30,000 hours, Eco mode

Throw Ratio
0.496

Zoom
Fixed
No optical zoom

Focus
Manual

Lens
F 2.8
f = 17.51mm

Projection Offset
114%

Projection Size
Approx. 70 to 300 inches, listed by B&H

Throw Distance
Approx. 0.8m to 3.3m, listed by B&H

Lens Shift
No mechanical lens shift

Keystone Correction
2D keystone
Auto vertical ±30 degrees
Manual horizontal ±30 degrees

Screen Fill Modes
4:3
16:9
16:10
1:1
5:4

Colour Coverage
93% Rec.709

HDR Support
HDR10
HLG

Picture Modes
Entertainment
3D
Bright
Cinema
Golf
HDR10
HLG
Presentation
sRGB
User 1
User 2
Vivid

Input Lag
16.7ms at 1080p / 60Hz
16.7ms at 4K / 60Hz
8.3ms at 1080p / 120Hz
4.2ms at 1080p / 240Hz

Resolution Support
VGA 640 x 480 to 4K UHD 3840 x 2160

Horizontal Frequency
15kHz to 135kHz

Vertical Scan Rate
23Hz to 240Hz

3D Support
Yes
DLP Link 3D glasses supported

HDMI Inputs
2 x HDMI 2.0b
HDCP 2.2

Network / Control
1 x RJ45 LAN
1 x RS232 DB-9 input

USB
2 x USB Type-A

Audio Output
1 x 3.5mm mini jack

Built-In Speaker
1 x 15W

IP Rating
IP6X sealed engine

Operating Temperature
0°C to 40°C

Power Supply
AC 100V to 240V
50 / 60Hz

Typical Power Consumption
230W at 110VAC

Standby Power Consumption
Less than 0.5W

Network Standby Power Consumption
Less than 2W

Noise Level
30dB typical
24dB Eco

Security
Cable lock slot
Password protection
Security bar

Optional Accessories
Anti-dust filter
Universal ceiling mount CM00G3

Included Accessories
Remote control with battery
Power cord
Quick start guide
Warranty card, region dependent

Dimensions
279.2mm (W) x 120.5mm (H) x 229.3mm (D)

Weight
3.6kg

Finish
Black

Rapallo Product Data

MPN: LK830ST

SKU: BENQ-LK830ST

EAN / UPC / GTIN: 084004605192

 

Why Buy From Rapallo

✔ Expert advice on projector, screen, and room matching
✔ Help with throw distance and golf simulator setup planning
✔ NZ support and after-sales service
✔ Trusted home theatre and AV installation specialists
✔ Practical guidance for mounting, HDMI cabling, alignment, and audio integration