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Product comparison · 2 data projectors

Epson EMP-822 vs Viewsonic PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768)

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  • 23specifications compared
  • 14differ
  • 9identical
  • 28known for one product only

Key differences

  • Projector brightness
    • 2600 ANSI lumens
    • 2500 ANSI lumens
  • Contrast ratio (typical)
    • 400:1
    • 600:1
  • Keystone correction, vertical
    • -30 - 30°
    • 32°
  • Service life of light source
    • 4000 h
    • 3000 h
  • Lamp power
    • 170 W
    • 205 W
  • Focal length range
    • 18.40 - 22.12 mm
    • 18.85 - 22.23 mm
  • Component video (YPbPr/YCbCr) in
    • 1
    • 3
  • RMS rated power
    • 7 W
    • 2 W

Side by side

Differences highlightedShow differences only
51 specifications
A

Epson

EMP-822

Model EMP-822

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B

Viewsonic

PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768)

Model PJ678

View product
Projector4 differ
Projector brightnessDiffers2600 ANSI lumens2500 ANSI lumens
Projection technologyLCDLCD
Projector native resolutionXGA (1024x768)XGA (1024x768)
Contrast ratio (typical)Differs400:1600:1
Screen size compatibilityDiffers762 - 7620 mm (30 - 300")711.2 - 8407.4 mm (28 - 331")
Projection distanceKnown for one1 - 10 m
Keystone correction, verticalDiffers-30 - 30°32°
Matrix sizeKnown for one1.6 cm (0.63")
Number of coloursKnown for one16.78 million colours
Light source2 differ
Light source typeLampLamp
Service life of light sourceDiffers4000 h3000 h
Lamp powerDiffers170 W205 W
Lamp typeKnown for oneUHE
Lens system1 differ
FocusManualManual
Focal length rangeDiffers18.40 - 22.12 mm18.85 - 22.23 mm
Videoidentical
Analog signal format systemKnown for oneNTSC 4.43, NTSC M, PAL, SECAM
Ports & interfaces1 differ
VGA (D-Sub) ports quantity22
Component video (YPbPr/YCbCr) inDiffers13
Composite video in11
DVI portKnown for oneYes
S-Video inputs quantity11
Audio (L/R) outKnown for one1
Serial interface typeRS-232RS-232
Headphone outputsKnown for one1
Featuresidentical
Noise levelKnown for one34 dB
CertificationKnown for oneCE, CB, FCC-B, CCC, TÜV-GS, WEEE, RoHS
Country of originKnown for oneChina
Multimedia1 differ
Number of built-in speakersKnown for one1
RMS rated powerDiffers7 W2 W
Design1 differ
Market positioningDiffersHome cinemaPortable
Poweridentical
Power consumption (typical)Known for one280 W
Operational conditions1 differ
Operating temperature (T-T)Differs5 - 35 °C0 - 40 °C
Operating relative humidity (H-H)Known for one10 - 90%
Weight & dimensions2 differ
WeightDiffers2.9 kg3.1 kg
Package weightDiffers4.86 kg4.1 kg
Package widthKnown for one375 mm
Package depthKnown for one420 mm
Package heightKnown for one180 mm
Other features1 differ
Aspect ratioKnown for one4:3, 16:9
Package dimensions (WxDxH)Known for one360 x 220 x 310 mm
Connectivity technologyKnown for oneWired
Dimensions (WxDxH)Differs245 x 327 x 92 mm298 x 224 x 84 mm
Lens focal rangeKnown for one1.75 - 1.9
Power requirementsKnown for oneAC 100 - 120/200 - 240V, 50/60Hz
RS-232 ports11
InterfaceKnown for oneLAN
Logistics dataidentical
Quantity per packKnown for one1 pc(s)
Products per palletKnown for one44 pc(s)
Products per pallet (UK)Known for one66 pc(s)
Products per pallet layerKnown for one4 pc(s)
Products per pallet layer (UK)Known for one6 pc(s)

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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