Home / Installation & Large-Venue Projectors / BenQ LK935 4K 5,500-Lumen Laser Conference Room Projector

BenQ

BenQ LK935 4K 5,500-Lumen Laser Conference Room Projector

Name: BenQ LK935 4K 5,500-Lumen Laser Conference Room Projector
Brand: BenQ
SKU: 9H.JS277.14E
Price: 4191.32 GBP
Availability: OutOfStock

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Manufacturer warranty

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£4,191.32inc. VAT

£3,492.77 ex. VAT

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Bought in the UK, backed in the UKWhy it matters →

Sourced through UK distribution
UK manufacturer warranty
UK-based engineers
No import duty or customs charges
GBP pricing, UK VAT invoices

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Manufacturer warranty

Installation services available

Call 020 3815 8642

Key specifications

Resolution4K UHD (3840 x 2160)

White Light Output5,500 ANSI lumens

Contrast Ratio3,000,000:1

Aspect Ratio16:9

Projection TechnologyDLP

Light SourceLaser, 20,000 hours normal

Throw Ratio1.36 - 2.18:1

Zoom1.6x

All 18 specifications

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Description

BenQ LK935. Projector brightness: 5500 ANSI lumens, Projection technology: DLP, Projector native resolution: UHD 4K (3840x2160). Light source type: Laser, Service life of light source: 20000 h, Service life of light source (economic mode): 30000 h. Focal length range: 8.6 - 9.4 mm, Zoom ratio: 1.6:1, Throw ratio: 1.36 - 2.18. Supported graphics resolutions: 640 x 480 (VGA), 3840 x 2160. Serial interface type: RS-232, HDMI connector type: Full-size, HDMI version: 2.0b

Also in this range:4,600-Lumen 4,000-Lumen 5,000-Lumen 3,500-Lumen Full specifications Datasheet Compare alternatives

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Technical specifications

Choose a section to view its specifications.

Display (3)

Resolution: 4K UHD (3840 x 2160)
Contrast Ratio: 3,000,000:1
Aspect Ratio: 16:9

Connectivity (3)

White Light Output: 5,500 ANSI lumens
Connectivity: 2 x HDMI 2.0b (HDCP 2.2), DisplayPort, HDBaseT, LAN (RJ45), 3D sync in and out, USB Type-A, RS-232, wired remote in and out, 12 V trigger
Input Lag: 33.4 ms (1080p 60Hz)

Audio (1)

Audio: 10 W speaker, HDMI ARC 5.1, S/PDIF, 3.5 mm audio out

Power & Physical (3)

Power Consumption: 440 W typical
Weight: 6.93 kg
Dimensions (W x D x H): 416 x 351 x 166 mm

General (8)

Projection Technology: DLP
Light Source: Laser, 20,000 hours normal
Throw Ratio: 1.36 - 2.18:1
Zoom: 1.6x
Lens Shift: Vertical -60% to +60%, horizontal -23% to +23%
Keystone Correction: Vertical ±30°, horizontal ±30°, rotation ±30°
Noise Level: 40 dB normal, 33 dB eco
Rec. 709 Coverage: 92%

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Throw distance guide

With its 1.36 to 2.18:1 throw ratio, here's how far the projector needs to sit from the screen for common 16:9 image sizes. Try our throw distance calculator for your exact room.

Try a size

100"

16:9 diagonal image

Image

2.21 m × 1.25 m

Lens position

3.0 m to 4.8 m

Side view: drag the projector to try its available lens positions

Position fits

Image size	Image dimensions	Lens distance range
60"	1.33 m × 0.75 m	1.8 m to 2.9 m
80"	1.77 m × 1.00 m	2.4 m to 3.9 m
100"	2.21 m × 1.25 m	3.0 m to 4.8 m
120"	2.66 m × 1.49 m	3.6 m to 5.8 m
150"	3.32 m × 1.87 m	4.5 m to 7.2 m

Planning from a real wall? Use the projector screen size calculator to upload a photo, preview the image to scale and find projectors that fit within your maximum available space. Replacing an existing projector? The projector replacement calculator checks whether this lens covers the ratio your current mount needs.

Distances are lens-to-screen, calculated from the manufacturer's stated throw ratio; allow for lens shift and mounting hardware. Always confirm against the manufacturer's installation guide before fixing mounts.

See it on your wall, to scale

Choose a picture size, then upload a wall photo, or scan the QR code and take it on your phone. We'll show the projected picture at its real size.

Picture size

100" 16:9 · 2.21 m × 1.25 m

On a computer, the QR code sends your phone photo straight back to this page.

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Complete your setup

Optional extras that fit this product. Tick anything you need and it joins the same basket — or add this product on its own from the buy box above.

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Choose a Screen

Video Conferencing

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Professional Installation

Want it installed by our AV experts? We offer professional on-site installation including mounting, cable management, and system configuration.

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Your Configuration

BenQ LK935 4K 5,500-Lumen Laser Conference Room Projector × 1£4,191.32

Total£4,191.32

inc. VAT

This item is currently out of stock. Please check back soon or contact us.

Documents

BenQ LK935 datasheet (PDF)

Frequently asked questions

How bright is the BenQ LK935 and what resolution does it project?

The LK935 delivers 5,500 ANSI lumens at native UHD 4K (3840x2160) resolution using DLP technology.

How far from the screen does the LK935 need to sit?

Its throw ratio is 1.36-2.18 with a 1.6:1 zoom ratio. For a 100" 16:9 image (about 2.21m wide), that works out to roughly 3.0m-4.8m back from the screen, depending on zoom setting.

How long does the laser light source last?

Up to 20,000 hours in normal mode, extending to 30,000 hours in economic mode.

What connectivity does the LK935 have?

It has a full-size HDMI 2.0b input and an RS-232 serial port for control, supporting graphics resolutions from 640x480 up to 3840x2160.

Is the BenQ LK935 currently in stock at TopAV?

Stock is currently low, with 1 unit remaining. It will dispatch within 2 working days while available - contact TopAV to check current availability.

Delivery & returns

Estimated delivery 20 Oct - 24 Oct. UK mainland delivery only. Some large or made-to-order items carry longer lead times, shown on the product page.

Unused items in original packaging can be returned within 14 days of delivery — see the returns policy for how business and consumer returns differ. Faulty items are covered under manufacturer warranty and by your statutory rights.

Full delivery & returns policy

Bought in the UK, backed in the UK

This item is sourced through UK distribution and ships to you from within the UK, so the order never crosses a customs border.
The manufacturer warranty is honoured here in the UK. If something fails, you deal with us, not with an overseas seller in another time zone.
Our own UK-based engineers install, commission and support what we sell, and can attend site when a system needs hands on it.
Delivered within the UK mainland, so there is no import duty, customs charge or courier handling fee waiting for you on delivery.
Prices are in pounds sterling with proper UK VAT invoices, and purchase orders are accepted from approved education accounts: no currency conversion and no surprises at the door.

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