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White rectangular LCD projector with front lens and ventilation grilles

LG Electronics

LG Electronics BF40QS 4000-Lumen WUXGA LCD Projector, White

SKU CH-F8QA-MG9CA

A 4000-lumen LCD projector with WUXGA 1920 x 1200 resolution, 3000000:1 contrast and dual HDMI inputs for business presentations

  • Cabinet ColorWhite
  • TypeLCD
  • Brightness4000 cd/m2
  • Native Resolution1920 x 1200
  • Maximum Resolution1920 x 1200
  • Aspect Ratio16:10
  • Bright 4000-lumen output for clear images in lit rooms
  • Sharp WUXGA 1920 x 1200 native resolution shows fine detail
  • High 3000000:1 contrast ratio adds depth to dark scenes
  • Two HDMI ports plus RJ45 simplify multi-source setups
  • Long 20000-hour lamp life reduces maintenance downtime

LG BF40QS 4000-Lumen WUXGA Projector

The LG Electronics BF40QS is a new LCD projector delivering 4000 lumens of brightness at a native 1920 x 1200 resolution with a 16:10 aspect ratio. It achieves a 3000000:1 contrast ratio and supports horizontal refresh rates up to 120 Hz and vertical rates up to 100 Hz. The unit weighs 20.3 lbs and consumes 320 watts during operation.

Suited for Bright Meeting Rooms and Classrooms

This projector suits venues where high ambient light demands 4000 lumens and the 16:10 WUXGA format matches laptop output without letterboxing. The RJ45 port allows network integration for managed installations. Buyers needing built-in audio must add external speakers because the unit has none. Those requiring vertical lens shift or rear-projection mounting should look elsewhere as the specifications list front projection only.

Dual HDMI and Ethernet for Simple Integration

Two HDMI inputs let users switch between a laptop and a streaming device without re-cabling. The RJ45 connector enables centralised control and monitoring over a wired network. A rated lamp life of 20000 hours reduces maintenance intervals for daily professional use. Manual focus adjustment gives the installer direct control over image sharpness at setup.

Highlights

  • Bright 4000-lumen output for clear images in lit rooms
  • Sharp WUXGA 1920 x 1200 native resolution shows fine detail
  • High 3000000:1 contrast ratio adds depth to dark scenes
  • Two HDMI ports plus RJ45 simplify multi-source setups
  • Long 20000-hour lamp life reduces maintenance downtime

Specifications

BrandLG Electronics
ModelBF40QS
Cabinet ColorWhite
TypeLCD
Brightness4000 cd/m2
Native Resolution1920 x 1200
Maximum Resolution1920 x 1200
Aspect Ratio16:10
Contrast Ratio3000000:1
Horizontal Refresh Rate120 Hz
Vertical Refresh Rate100 Hz
Projection MethodsFront
Network ConnectorsRJ45
Other Connectors,,,HDMI: 2,
Built-in SpeakersNo
Power Consumption320 Watts
Weight20.3 lbs

Questions about this item

What cables do I need to connect a laptop and a wired network to the BF40QS?

Use the two HDMI ports for the laptop and the RJ45 port for the wired network.

Will my older 1080p source display correctly on the 1920 x 1200 native panel?

Yes, the projector accepts 1080p signals and scales them to the 16:10 WUXGA resolution.

How can I verify the BF40QS is running at its specified 4000-lumen brightness after setup?

Display a full-white test pattern in a darkened room and measure screen illuminance with a calibrated light meter.

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