Product comparison · 2 data projectors

Acer Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White vs Epson PowerLite 1224 Standard throw projector 3200 ANSI lumens 3LCD XGA (1024x768) Black

37specifications compared
21differ
16identical
45known for one product only

Key differences

Projector brightness
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:800 ANSI lumens
- PowerLite 1224 Standard throw projector 3200 ANSI lumens 3LCD XGA (1024x768) Black:3200 ANSI lumens
Projection technology
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:DLP
- PowerLite 1224 Standard throw projector 3200 ANSI lumens 3LCD XGA (1024x768) Black:3LCD
Projector native resolution
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:WXGA (1280x800)
- PowerLite 1224 Standard throw projector 3200 ANSI lumens 3LCD XGA (1024x768) Black:XGA (1024x768)
Native aspect ratio
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:16:10
- PowerLite 1224 Standard throw projector 3200 ANSI lumens 3LCD XGA (1024x768) Black:4:3
Screen size compatibility
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:635 - 2540 mm (25 - 100")
- PowerLite 1224 Standard throw projector 3200 ANSI lumens 3LCD XGA (1024x768) Black:762 - 7620 mm (30 - 300")
Keystone correction, vertical
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:-20 - 20°
- PowerLite 1224 Standard throw projector 3200 ANSI lumens 3LCD XGA (1024x768) Black:-30 - 30°
Service life of light source
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:20000 h
- PowerLite 1224 Standard throw projector 3200 ANSI lumens 3LCD XGA (1024x768) Black:5000 h
Service life of light source (economic mode)
- Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White:30000 h
- PowerLite 1224 Standard throw projector 3200 ANSI lumens 3LCD XGA (1024x768) Black:10000 h

Side by side

Differences highlightedShow differences only

Comparison of K138ST, 1224
82 specifications	A Acer Travel K138ST Standard throw projector 800 ANSI lumens DLP WXGA (1280x800) 3D White Model K138ST View product	B Epson PowerLite 1224 Standard throw projector 3200 ANSI lumens 3LCD XGA (1024x768) Black Model 1224 View product
Projector6 differ
Projector brightnessDiffers	800 ANSI lumens	3200 ANSI lumens
Projection technologyDiffers	DLP	3LCD
Projector native resolutionDiffers	WXGA (1280x800)	XGA (1024x768)
Native aspect ratioDiffers	16:10	4:3
Screen size compatibilityDiffers	635 - 2540 mm (25 - 100")	762 - 7620 mm (30 - 300")
Contrast ratio (dynamic)Known for one	Unknown — not stated by the source	15000:1
Number of colours	1.073 billion colours	1.073 billion colours
Colour light outputKnown for one	Unknown — not stated by the source	3200 ANSI lumens
Keystone correction, horizontalKnown for one	Unknown — not stated by the source	-30 - 30°
Keystone correction, verticalDiffers	-20 - 20°	-30 - 30°
Matrix typeKnown for one	Unknown — not stated by the source	3-panel (p-Si TFT active)
White light outputKnown for one	Unknown — not stated by the source	3200 ANSI lumens
Contrast ratio (typical)Known for one	100000:1	Unknown — not stated by the source
Supported aspect ratiosKnown for one	4:3, 16:10, 16:9	Unknown — not stated by the source
Projection distanceKnown for one	0.4 - 1.7 m	Unknown — not stated by the source
Vertical scan rangeKnown for one	50 - 120 Hz	Unknown — not stated by the source
Horizontal synchronization (max)Known for one	100 kHz	Unknown — not stated by the source
Horizontal synchronization (min)Known for one	30 kHz	Unknown — not stated by the source
Light source2 differ
Light source typeKnown for one	Unknown — not stated by the source	Lamp
Service life of light sourceDiffers	20000 h	5000 h
Service life of light source (economic mode)Differs	30000 h	10000 h
Lamp typeKnown for one	Unknown — not stated by the source	UHE
Lamp powerKnown for one	Unknown — not stated by the source	200 W
Lamps quantityKnown for one	1 lamp(s)	Unknown — not stated by the source
Lens system1 differ
Focus	Manual	Manual
Focal length rangeKnown for one	Unknown — not stated by the source	16.9 - 20.28 mm
Aperture range (F-F)Known for one	Unknown — not stated by the source	1.58 - 1.72
Zoom capabilityKnown for one	Unknown — not stated by the source	Yes
Zoom typeKnown for one	Unknown — not stated by the source	Manual
Zoom ratioKnown for one	Unknown — not stated by the source	1.2:1
Optical zoomKnown for one	Unknown — not stated by the source	1.2x
Throw ratioDiffers	0.8:1	1.48 - 1.77:1
Digital zoomKnown for one	1.7x	Unknown — not stated by the source
Videoidentical
Analog signal format systemKnown for one	Unknown — not stated by the source	NTSC, NTSC 4.43, PAL, PAL 60, PAL M, PAL N, SECAM
Full HD	No	No
3DKnown for one	Yes	Unknown — not stated by the source
3D ReadyKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces1 differ
VGA (D-Sub) ports quantity	1	1
HDMI ports quantity	1	1
Composite video inKnown for one	Unknown — not stated by the source	1
DVI portKnown for one	Unknown — not stated by the source	No
S-Video inputs quantityKnown for one	Unknown — not stated by the source	1
USB 2.0 ports quantityDiffers	1	2
Audio (L/R) inKnown for one	Unknown — not stated by the source	1
AC (power) inKnown for one	Yes	Unknown — not stated by the source
Networkidentical
Ethernet LAN	No	No
Wi-FiKnown for one	Unknown — not stated by the source	No
Ethernet LAN (RJ-45) portsKnown for one	0	Unknown — not stated by the source
Features1 differ
Noise levelDiffers	33 dB	37 dB
Noise level (economic mode)	29 dB	29 dB
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
Password protectionKnown for one	Unknown — not stated by the source	Yes
Multimedia1 differ
Built-in speaker(s)	Yes	Yes
RMS rated powerDiffers	3 W	2 W
Number of built-in speakersKnown for one	2	Unknown — not stated by the source
Design2 differ
Product type	Standard throw projector	Standard throw projector
Market positioningDiffers	Portable	Home cinema
Product colourDiffers	White	Black
Placement	Desktop, Ceiling	Desktop, Ceiling
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Power2 differ
Power source	AC	AC
Power consumption (typical)Differs	80 W	291 W
Power consumption (economy mode)Differs	38 W	214 W
AC input voltage	100 - 240 V	100 - 240 V
AC input frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
Operational conditions1 differ
Operating temperature (T-T)Differs	5 - 40 °C	5 - 35 °C
Operating relative humidity (H-H)Known for one	0 - 80%	Unknown — not stated by the source
Weight & dimensions4 differ
WeightDiffers	750 g	2.4 kg
WidthDiffers	240 mm	297 mm
DepthDiffers	147 mm	234 mm
HeightDiffers	59 mm	76 mm
Packaging contentidentical
Remote control included	Yes	Yes
Batteries included	Yes	Yes
Manual	Yes	Yes
Quick start guide	Yes	Yes
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
Carrying caseKnown for one	Yes	Unknown — not stated by the source
Displayidentical
Built-in displayKnown for one	No	Unknown — not stated by the source
Softwareidentical
Windows operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Mac operating systems supportedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Maximum digital resolutionKnown for one	1920 x 1080 pixels	Unknown — 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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