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Acer QT12 vs ViewSonic LSD400W

What QT12 does better (1) and where LSD400W wins (5) — every spec side by side.

Acer QT12
Acer · 2026QT12
1 advantage
vs
ViewSonic LSD400W
ViewSonic · 2026LSD400W
7.8Score
5 advantages≈ US$570
Higher score
6.8Picture6.8

Why is QT12 better than LSD400W?

  1. Brightness (ANSI / ISO lumens)6,500 lm vs 4,000 lm+62%

Why is LSD400W better than QT12?

  1. Resolution (on screen)1280 × 720 (HD) vs 1920 × 1080 (Full HD)
  2. Light source life6,500 h vs 20,000 h3.1×
  3. Native panel resolution1280 × 720 (HD) vs 1920 × 1080 (Full HD)
  4. HDMI inputs1 vs 22×
  5. Audio outputNo · QT12: Yes
Specifications

Side by side

ViewSonic LSD400WViewSonic LSD400W≈ US$5707.8
Picture
Resolution (on screen)1280 × 720 (HD)1920 × 1080 (Full HD)
Native panel resolution1280 × 720 (HD)1920 × 1080 (Full HD)
Display technologyLCD (single panel)DLP
Light sourceLEDLaser
Brightness (ANSI / ISO lumens)6,500 lm4,000 lm
Contrast ratio (dynamic / claimed)—3,000,000:1
Lens & placement
Largest image size—300″
Optical zoom—2×
Keystone correction—Yes
Automatic keystone correction—No
Connectivity
HDMI inputs12
HDMI version—1.4
USB portYesYes
Ethernet (LAN)NoNo
VGA inputNoNo
Audio outputNoYes
Battery, power & lifetime
Light source life6,500 h20,000 h
Light source life (eco mode)—30,000 h
Design & noise
Fan noise—30 dB
Fan noise (eco mode)—25 dB
Weight—3.1 kg
Width—286 mm
Height—129 mm
Depth—216 mm
ColoursWhiteWhite
To compare: 0up to 4 models
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