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White rectangular projector unit with front lens and top control panel

BenQ

BenQ AK700ST Business Projector 4000 Lumens 4K Laser Short Throw

SKU CH-EE7K-H4HCF MPN AK700ST

throw laser projector delivers 4K UHD resolution with 4000 ANSI lumens and 3,000,000:1 contrast for bright rooms

  • TypeProject Lamp
  • Weight16.4900
  • 4000 ANSI lumens ensures bright images in lit rooms
  • 4K UHD 3840×2160 resolution delivers sharp detail for presentations
  • 3,000,000:1 contrast ratio produces deep blacks and vivid colours
  • Short throw 0.69-0.83 ratio allows large images from close range
  • Laser light source rated 20000 hours reduces maintenance downtime

Bright conference-room projector

The BenQ AK700ST is a 4K UHD laser projector rated at 4000 ANSI lumens and a 3,000,000:1 contrast ratio. It suits conference rooms, classrooms and home theatres that need a bright image without a dedicated dark space. The short-throw lens lets you place the unit close to the screen while still filling a large display area. Its laser light source is rated for 20000 hours of operation.

Thermals and power

The projector uses a laser light engine that runs cooler and more consistently than lamp-based models. Two HDMI 2.0b inputs with HDCP 2.2 handle 4K signals up to 135 kHz horizontal frequency. A single 10 W speaker provides basic audio for meetings without external amplification. USB Type-A ports supply 1.5 A for streaming dongles or wireless adapters.

Sustained-load behaviour

The 0.69-0.83 throw ratio and 1.2x optical zoom maintain image geometry across long sessions without focus drift. Keystone correction covers vertical, horizontal and rotation adjustments up to ±30 degrees each. HDR10 and HLG picture modes preserve highlight detail during extended video playback. The laser source keeps brightness stable over the full 20000-hour rated life.

Highlights

  • 4000 ANSI lumens ensures bright images in lit rooms
  • 4K UHD 3840×2160 resolution delivers sharp detail for presentations
  • 3,000,000:1 contrast ratio produces deep blacks and vivid colours
  • Short throw 0.69-0.83 ratio allows large images from close range
  • Laser light source rated 20000 hours reduces maintenance downtime

Specifications

BrandBenQ
ModelAK700ST
Part NumberAK700ST
TypeProject Lamp
Weight16.4900
Shipping weight0.43 kg
Package size94 × 11 × 4 mm

Questions about this item

How do I mount the AK700ST at the correct distance for my screen size using the 0.69–0.83 throw ratio?

Multiply your desired image width by a value between 0.69 and 0.83 to find the lens-to-screen distance; use the 1.2× optical zoom to fine-tune the image size without moving the projector.

When will the laser light source need replacement and what is the rated life?

The laser light source is rated for 20000 hours of operation; after that period brightness will gradually decline and the light engine should be serviced or replaced.

What is the first image-quality limit that appears during long sessions with 4000 ANSI lumens output?

Sustained high-brightness operation can cause gradual laser-phosphor degradation, which reduces peak luminance and contrast before the 20000-hour rating is reached.

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