Product comparison · 2 data projectors

Epson PowerLite 1705c Multimedia Projector vs Epson PowerLite 77c Multimedia Projector

35specifications compared
14differ
21identical
7known for one product only

Key differences

Uniformity
- PowerLite 1705c Multimedia Projector:83%
- PowerLite 77c Multimedia Projector:90%
Service life of light source
- PowerLite 1705c Multimedia Projector:2000 h
- PowerLite 77c Multimedia Projector:3000 h
Service life of light source (economic mode)
- PowerLite 1705c Multimedia Projector:3000 h
- PowerLite 77c Multimedia Projector:4000 h
Focal length range
- PowerLite 1705c Multimedia Projector:23.7 - 28.5 mm
- PowerLite 77c Multimedia Projector:18.4 - 22.12 mm
Noise level
- PowerLite 1705c Multimedia Projector:40 dB
- PowerLite 77c Multimedia Projector:35 dB
Power consumption (typical)
- PowerLite 1705c Multimedia Projector:244 W
- PowerLite 77c Multimedia Projector:248 W
Power consumption (standby)
- PowerLite 1705c Multimedia Projector:4 W
- PowerLite 77c Multimedia Projector:4.1 W
Weight
- PowerLite 1705c Multimedia Projector:1.68 kg
- PowerLite 77c Multimedia Projector:2.7 kg

Side by side

Differences highlightedShow differences only

Comparison of PowerLite 1705c Multimedia Projector, PowerLite 77c Multimedia Projector
42 specifications	A Epson PowerLite 1705c Multimedia Projector View product	B Epson PowerLite 77c Multimedia Projector View product
Projector1 differ
Projector brightness	2200 ANSI lumens	2200 ANSI lumens
Projection technology	LCD	LCD
Projector native resolution	XGA (1024x768)	XGA (1024x768)
Contrast ratio (typical)	400:1	400:1
Screen size compatibility	762 - 7620 mm (30 - 300")	762 - 7620 mm (30 - 300")
Projection distance	6	6
Number of colours	16.78 million colours	16.78 million colours
UniformityDiffers	83%	90%
Horizontal scan range	15 - 92 kHz	15 - 92 kHz
Vertical scan range	50 - 85 Hz	50 - 85 Hz
Keystone correction, vertical	-30 - 30°	-30 - 30°
Light source2 differ
Light source type	Lamp	Lamp
Service life of light sourceDiffers	2000 h	3000 h
Service life of light source (economic mode)Differs	3000 h	4000 h
Lamp type	UHE	UHE
Lamp power	170 W	170 W
Lens system1 differ
FocusKnown for one	Manual	Unknown — not stated by the source
Focal length rangeDiffers	23.7 - 28.5 mm	18.4 - 22.12 mm
Videoidentical
HD-ReadyKnown for one	Yes	Unknown — not stated by the source
Ports & interfacesidentical
VGA (D-Sub) ports quantity	1	1
Component video (YPbPr/YCbCr) in	1	1
Composite video in	1	1
S-Video inputs quantity	1	1
PC Audio inKnown for one	Yes	Unknown — not stated by the source
Features1 differ
Noise levelDiffers	40 dB	35 dB
Dot clock scanning frequency	162 MHz	162 MHz
Air filterKnown for one	Yes	Unknown — not stated by the source
Multimediaidentical
Number of built-in speakers	1	1
RMS rated power	1 W	1 W
Designidentical
Market positioningKnown for one	Portable	Unknown — not stated by the source
Power2 differ
Power consumption (typical)Differs	244 W	248 W
Power consumption (standby)Differs	4 W	4.1 W
Operational conditionsidentical
Operating temperature (T-T)	5 - 35 °C	5 - 35 °C
Weight & dimensions1 differ
WeightDiffers	1.68 kg	2.7 kg
Other features6 differ
Aspect ratioDiffers	4:3	4:3, 16:9
Dimensions (WxDxH)Differs	272 x 193 x 79 mm	244 x 327.5 x 110 mm
InterfaceDiffers	USB 2.0, 802.11 a/b/g	USB
Lens systemDiffers	F=1.6 - 1.77	F=1.6 - 1.74
Power requirementsDiffers	100 - 240V ± 10%, 50/60 Hz	100 - 240V ± 10%, 50/60 Hz AC
Video inDiffers	NTSC, NTSC4.43, PAL, M-PAL, N-PAL, PAL60, SECAM HDTV: 480i, 480p, 720p, 1080i	NTSC/NTSC4.43/PAL/M-PAL/N-PAL/PAL60/SECAM
Audio inputKnown for one	Unknown — not stated by the source	RCA x 2
Connectivity technologyKnown for one	Unknown — not stated by the source	Wired

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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