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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

  • Image brightness4000 cd/m2
  • Power draw320 W
  • Panel resolution1920 × 1200
  • Highest resolution1920 × 1200
  • Screen ratio16:10
  • Contrast3000000:1
  • 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.

How it compares

Measured against everything we stock in Presentation Projectors, at today’s prices. Recalculated every night.

Price $962.99
Pricier than about 82% of the 608 comparable items (median $157.99).
Image brightness 4000 cd/m2
Higher than about 99% of the 22 comparable items (median 1,200 nits).

Specifications

Product
Brand nameLG Electronics
Model nameBF40QS
Case colorWhite
Product typeLCD
Display
Image brightness4000 cd/m2
Panel resolution1920 × 1200
Highest resolution1920 × 1200
Screen ratio16:10
Contrast3000000:1
Horizontal scan rate120 Hz
Vertical frequency100 Hz
Projection setupFront
Audio & video
Integrated speakersNo
Connectivity
Network connectionRJ45
Power
Power draw320 W
Size & build
Product weight20.3 lb (9.21 kg)

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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