Product comparison · 2 data projectors

Epson PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White vs Ricoh PJ HD5451

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  • 62specifications compared
  • 30differ
  • 32identical
  • 30known for one product only

Key differences

The Epson PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White has 13,200 :1 more contrast ratio (typical) than the Ricoh PJ HD5451 (15000:1 vs 1800:1). The Epson PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White has 3,000 h more service life of light source than the Ricoh PJ HD5451 (6000 h vs 3000 h). The Epson PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White has 6,000 h more service life of light source (economic mode) than the Ricoh PJ HD5451 (12000 h vs 6000 h). Projection technology: 3LCD on the Epson PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White, DLP on the Ricoh PJ HD5451. Projector native resolution: WUXGA (1920x1200) on the Epson PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White, 1080p (1920x1080) on the Ricoh PJ HD5451.

  • Projection technology
    • PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White:3LCD
    • PJ HD5451:DLP
  • Projector native resolution
    • PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White:WUXGA (1920x1200)
    • PJ HD5451:1080p (1920x1080)
  • Contrast ratio (typical)
    • PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White:15000:1
    • PJ HD5451:1800:1
  • Screen size compatibility
    • PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White:762 - 7620 mm (30 - 300")
    • PJ HD5451:1016 - 7620 mm (40 - 300")
  • Projection distance
    • PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White:0.76 - 7.62 m
    • PJ HD5451:1.3 - 7.2 m
  • Service life of light source
    • PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White:6000 h
    • PJ HD5451:3000 h
  • Service life of light source (economic mode)
    • PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White:12000 h
    • PJ HD5451:6000 h
  • Lamp type
    • PowerLite 990U Standard throw projector 3800 ANSI lumens 3LCD WUXGA (1920x1200) White:UHE
    • PJ HD5451:Mercury lamp

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Differences highlightedShow differences only (on)
Comparison of 990U, PJ HD5451
92 specifications
Projector5 differ
Projection technologyDiffers3LCDDLP
Projector native resolutionDiffersWUXGA (1920x1200)1080p (1920x1080)
Contrast ratio (typical)Differs15000:11800:1
Screen size compatibilityDiffers762 - 7620 mm (30 - 300")1016 - 7620 mm (40 - 300")
Projection distanceDiffers0.76 - 7.62 m1.3 - 7.2 m
Number of coloursKnown for one1.073 billion coloursUnknown — not stated by the source
Keystone correction, horizontalKnown for one-30 - 30°Unknown — not stated by the source
Matrix typeKnown for one3-panel (p-Si TFT active)Unknown — not stated by the source
Contrast ratio (dynamic)Known for oneUnknown — not stated by the source8000:1
Matrix sizeKnown for oneUnknown — not stated by the source1.65 cm (0.65")
Light source4 differ
Service life of light sourceDiffers6000 h3000 h
Service life of light source (economic mode)Differs12000 h6000 h
Lamp typeDiffersUHEMercury lamp
Lamp powerDiffers210 W260 W
Lamps quantityKnown for one1 lamp(s)Unknown — not stated by the source
Lens system2 differ
FocusKnown for oneManualUnknown — not stated by the source
Focal length rangeKnown for one20.3 - 32.5 mmUnknown — not stated by the source
Aperture range (F-F)Known for one1.51 - 1.99Unknown — not stated by the source
Zoom ratioDiffers1.6:11.36:1
Throw ratioDiffers1.39 - 2.23:11.06 - 1.45:1
Zoom capabilityKnown for oneUnknown — not stated by the sourceYes
Zoom typeKnown for oneUnknown — not stated by the sourceManual
Vertical lens shift rangeKnown for oneUnknown — not stated by the source98.1 - 115%
Video2 differ
Analog signal format systemDiffersNTSC, NTSC 4.43, PAL, PAL 60, PAL M, PAL N, SECAMNTSC, NTSC 4.43, PAL, PAL 60, PAL M, SECAM
3DKnown for oneNoUnknown — not stated by the source
Supported graphics resolutionsDiffers640 x 480 (VGA), 800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 960, 1366 x 768, 1400 x 1050 (SXGA+), 1440 x 900 (WXGA+), 1600 x 1200 (UXGA), 1600 x 900720 x 480, 720 x 576, 800 x 600 (SVGA), 1024 x 600, 1024 x 768 (XGA), 1152 x 864 (XGA+), 1152 x 870, 1280 x 720 (HD 720), 1280 x 768 (WXGA), 1280 x 800 (WXGA), 1280 x 960, 1366 x 768, 1400 x 1050 (SXGA+), 1440 x 900 (WXGA+), 1600 x 1200 (UXGA), 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080)
Video processingKnown for one10 bitUnknown — not stated by the source
3D ReadyKnown for oneUnknown — not stated by the sourceYes
Supported video modesKnown for oneUnknown — not stated by the source480i, 480p, 576i, 576p, 720p, 1080i, 1080p
Ports & interfaces6 differ
VGA (D-Sub) ports quantityDiffers32
Component video (YPbPr/YCbCr) inDiffers10
Composite video inDiffers01
S-Video inputs quantityDiffers01
USB 2.0 ports quantityDiffers10
USB 2.0 Type-B ports quantityKnown for one1Unknown — not stated by the source
Audio (L/R) inDiffers10
PC in (D-Sub)Known for oneYesUnknown — not stated by the source
Features2 differ
Noise levelKnown for one37 dBUnknown — not stated by the source
Noise level (economic mode)Differs28 dB31 dB
Projection modesDiffersCeiling, Front, RearCeiling, Rear
Plug and PlayKnown for oneYesUnknown — not stated by the source
Password protectionKnown for oneUnknown — not stated by the sourceYes
Multimedia1 differ
RMS rated powerDiffers16 W10 W
Design1 differ
Product colourDiffersWhiteBlack
Power3 differ
Power consumption (typical)Differs326 W338 W
Power consumption (standby)Differs2 W0.5 W
Power consumption (economy mode)Differs237 W280 W
AC input frequencyKnown for one50 - 60 HzUnknown — not stated by the source
Power consumption (max)Known for oneUnknown — not stated by the source352 W
Operational conditions1 differ
Operating temperature (T-T)Differs5 - 35 °C5 - 40 °C
Storage temperature (T-T)Known for oneUnknown — not stated by the source-20 - 60 °C
Operating relative humidity (H-H)Known for oneUnknown — not stated by the source20 - 80%
Storage relative humidity (H-H)Known for oneUnknown — not stated by the source20 - 80%
Weight & dimensions3 differ
WidthDiffers307 mm314.2 mm
DepthDiffers292 mm223.5 mm
HeightDiffers104 mm91.8 mm
Packaging contentidentical
Quick start guideKnown for oneYesUnknown — not stated by the source
Warranty cardKnown for oneYesUnknown — not stated by the source
Carrying caseKnown for oneUnknown — not stated by the sourceYes
Technical detailsidentical
Compliance certificatesKnown for oneRoHSUnknown — not stated by the source

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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