Product comparison · 2 data projectors

Epson PowerLite S4 vs NEC VT490 LCD Projector

15specifications compared
9differ
6identical
26known for one product only

Key differences

Projector brightness
- PowerLite S4:1800 ANSI lumens
- VT490 LCD Projector:2000 ANSI lumens
Contrast ratio (typical)
- PowerLite S4:500:1
- VT490 LCD Projector:600:1
Lamp power
- PowerLite S4:170 W
- VT490 LCD Projector:190 W
Focal length range
- PowerLite S4:16.6 mm
- VT490 LCD Projector:1.5 - 1.8 mm
Power consumption (typical)
- PowerLite S4:250 W
- VT490 LCD Projector:255 W
Power consumption (standby)
- PowerLite S4:5 W
- VT490 LCD Projector:9 W
Weight
- PowerLite S4:2.6 kg
- VT490 LCD Projector:2.9 kg
Dimensions (WxDxH)
- PowerLite S4:246 x 328 x 100 mm
- VT490 LCD Projector:309 x 112 x 258 mm

Side by side

Differences highlightedShow differences only

Comparison of PowerLite S4, VT490 LCD Projector
41 specifications	A Epson PowerLite S4 View product	B NEC VT490 LCD Projector View product
Projector2 differ
Projector brightnessDiffers	1800 ANSI lumens	2000 ANSI lumens
Projection technology	LCD	LCD
Projector native resolution	SVGA (800x600)	SVGA (800x600)
Contrast ratio (typical)Differs	500:1	600:1
Screen size compatibilityKnown for one	762 - 7620 mm (30 - 300")	Unknown — not stated by the source
Projection distanceKnown for one	6	Unknown — not stated by the source
Number of coloursKnown for one	16.78 million colours	Unknown — not stated by the source
UniformityKnown for one	85%	Unknown — not stated by the source
Horizontal scan rangeKnown for one	15 - 92 kHz	Unknown — not stated by the source
Vertical scan rangeKnown for one	48 - 85 Hz	Unknown — not stated by the source
Keystone correction, verticalKnown for one	-30 - 30°	Unknown — not stated by the source
Light source1 differ
Light source type	Lamp	Lamp
Service life of light source	2000 h	2000 h
Service life of light source (economic mode)Known for one	3000 h	Unknown — not stated by the source
Lamp typeKnown for one	UHE	Unknown — not stated by the source
Lamp powerDiffers	170 W	190 W
Lens system1 differ
FocusKnown for one	Manual	Unknown — not stated by the source
Focal length rangeDiffers	16.6 mm	1.5 - 1.8 mm
Ports & interfacesidentical
VGA (D-Sub) ports quantity	2	2
S-Video inputs quantity	1	1
USB 2.0 ports quantityKnown for one	1	Unknown — not stated by the source
Composite video inKnown for one	Unknown — not stated by the source	1
Microphone inKnown for one	Unknown — not stated by the source	Yes
Serial interface typeKnown for one	Unknown — not stated by the source	RS-232
Featuresidentical
Noise levelKnown for one	36 dB	Unknown — not stated by the source
Dot clock scanning frequencyKnown for one	162 MHz	Unknown — not stated by the source
Multimediaidentical
Number of built-in speakersKnown for one	1	Unknown — not stated by the source
RMS rated powerKnown for one	1 W	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Differs	250 W	255 W
Power consumption (standby)Differs	5 W	9 W
Operational conditionsidentical
Operating temperature (T-T)Known for one	5 - 35 °C	Unknown — not stated by the source
Weight & dimensions1 differ
WeightDiffers	2.6 kg	2.9 kg
Packaging contentidentical
Remote control includedKnown for one	Yes	Unknown — not stated by the source
Other features2 differ
Audio inputKnown for one	RCA x 2	Unknown — not stated by the source
Connectivity technologyKnown for one	Wired	Unknown — not stated by the source
Dimensions (WxDxH)Differs	246 x 328 x 100 mm	309 x 112 x 258 mm
InterfaceKnown for one	USB	Unknown — not stated by the source
Lens systemKnown for one	F=1.4	Unknown — not stated by the source
Power requirementsDiffers	100-240 V +/- 10%, 50/60 Hz AC	100-240 V; 50/60 Hz
RS-232 portsKnown for one	Unknown — not stated by the source	1
Videoidentical
Analog signal format systemKnown for one	Unknown — not stated by the source	NTSC, PAL, SECAM

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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