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Acer K138ST
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Acer K138ST Projector

$577.15
$430.99 $146.16 cheaper than 79 days ago
100000:1 WXGA (1280x800) 33dB Jun 2015
Contrast Ratio (typical) Projector Native Resolution 3D Noise Level Release Date
Your presentations can now fit in a pocket - or your palm. Be PC-free: Project your content directly from a plugged-in USB drive, or SD Card, or even a smartphone. Show your ideas in HD quality by... More
$19.05 Electricity cost over 5 years. Calculate
Prices will drop $78
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Newegg UK
$430.99
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Acer K138ST from PCNation-Outlet
$533.21
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Acer K138ST from Pricebreak Outlet
$577.13
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Acer K138ST from PC Rush
$580.86
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Acer K138ST from PC Rush
$580.86
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Acer K138ST from Antonline
$625.59
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Acer K138ST from Arsenal PC Inc
$639.51
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8 Reasons For

Easy to Use

One Acer K138ST reviewer reckoned that the Acer K138ST was comfortable and easy to hold. Expert review site Liveatpc.com mentioned “So, when Acer placed this short throw projector in my hands, I was excited to watch all my backlogged”.

Good Technical Features

One person mentioned in their reviews that it had good features. Last year Amazon Customer wrote “Also, there are many fake features like Bluetooth”.

Acer Projectors Have Good Reviews

Data projectors produced by Acer have an average rating of 79%, which is in the top 58% of all projector brands that we have assessed.

Supports 3D

The Acer K138ST supports 3D, as do most of the other data projectors of this age and type.

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Has a Built-In Speaker(s)

The Acer K138ST has a built-in speaker(s), as do most of the other projectors that are a comparable age to the K138ST.

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Fairly Long Service Life of Lamp (economic Mode)

With a service life of lamp (economic mode) of 30,000 hours, the Acer K138ST has one of the longest service life of lamp (economic mode)s amongst similar spec projectors of this age. The service life of lamp (economic mode)s of comparable spec data projectors that are a similar age to the K138ST range from 800h to 75,000h, and the average service life of lamp (economic mode) is 8,100h.

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Very Quiet Noise Level (economic Mode)

With a noise level (economic mode) of only 29 decibels, the Acer K138ST has one of the quieter noise level (economic mode)s amongst similar spec projectors of this age. The quietest noise level (economic mode) of similar spec data projectors that were released around the same time as the K138ST is 26dB, the loudest is 40dB, and the average noise level (economic mode) is 32dB.

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Quite Low Power Consumption (economy Mode)

The lowest power consumption (economy mode) of comparable spec data projectors that are a similar age to the K138ST is 38W, the highest is 890W, and the average power consumption (economy mode) is 350W. When compared to other comparable spec projectors that came out around the same time as the K138ST that we have checked, the Acer K138ST's power consumption (economy mode) of only 38 Watts is one of the lowest.

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8 Reasons Against

Only 100V AC Input Voltage

This multimedia projector has a 100 - 240V AC input voltage, which is typical of many multimedia projectors of a similar age and spec to it.

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Does Not Support Wi-Fi

The Acer K138ST does not support wi-Fi, although it is worth noting that most of the other multimedia projectors of a similar type and age to the K138ST also do not support wi-Fi.

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Does Not Support Full HD

Like most of the other 100000:1 contrast ratio data projectors that have been around for a similar time to the K138ST, the Acer K138ST does not support full HD.

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Very Dim Projector Brightness

With a projector brightness of only 800 ANSI lumens, the Acer K138ST has a fairly dim projector brightness compared to most of the other comparable spec multimedia projectors that have been available for around the same time as the K138ST. Projectors that have been on the market for a comparable time to the K138ST have projector brightnesss of between 300 ANSI lumens and 11,000 ANSI lumens.

If this projector projector brightness is not bright enough for you then you might also want to look at the H7550[pl_2821607_price] (3,000 ANSI lumens and higher rated), or the H7550BD[pl_3186332_price] (3,000 ANSI lumens and higher rated) both from Acer.

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Very Low Vertical Synchronization (max)

The Acer K138ST has one of the lower vertical synchronization (max)s (only 0.12 kilohertz) amongst comparable spec projectors of this age. Across all the projectors that are a similar age to the K138ST the vertical synchronization (max)s range from 0.085kHz to 120kHz, and the average vertical synchronization (max) is 57kHz.

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Only One USB 2.0 Ports Quantity

The Acer K138ST is a one USB 2.0 ports quantity data projector. Most of the other 100000:1 contrast ratio data projectors that have been around for more than a year have between one and two USB 2.0 ports quantitys.

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Only One HDMI Ports Quantity

The Acer K138ST is a one HDMI ports quantity multimedia projector. Most of the other multimedia projectors of this age and type have between one and two HDMI ports quantitys.

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Very Short Service Life of Lamp

The Acer K138ST has one of the shorter service life of lamps (only 20,000 hours) amongst 100000:1 contrast ratio data projectors of this age. Data projectors of this age and spec have service life of lamps of between 20,000h and 30,000h, and the average service life of lamp is 29,000h.

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3 Other reasons to consider the Acer K138ST

Released Over a Year Ago

This Acer projector has been on the market for over a year.

WXGA (1280x800) Projector Native Resolution

This data projector has a projector native resolution of WXGA (1280x800), which is the most commonly found projector native resolution on similar spec projectors that are a comparable age to it.

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Average Noise Level

At 33 decibels, the Acer K138ST has a fairly average noise level compared to most of the other similar spec data projectors that are a comparable age to the K138ST.

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Specification

Projector
Contrast Ratio (typical)
Projector Native Resolution
Projector Brightness
Maximum Digital Resolution
Keystone Correction, Vertical
Vertical Synchronization (min)
Horizontal Synchronization (max)
Vertical Synchronization (max)
Horizontal Synchronization (min)
Projection Distance
Supported Aspect Ratios
Screen Size Compatibility
Native Aspect Ratio
Projection Technology
Number of Colours
Lamps
Lamps Quantity
Service Life of Lamp (economic Mode)
Lamp Type
Service Life of Lamp
Lens System
Throw Ratio
Digital Zoom
Focus
Video
3D
Full HD
3D-Ready
Ports & Interfaces
USB 2.0 Ports Quantity
HDMI Ports Quantity
VGA (D-Sub) Ports Quantity
AC (power) in
Networking
Ethernet LAN
Performance
Noise Level
Mac Operating Systems Supported
Windows Operating Systems Supported
Noise Level (economic Mode)
Vertical Scan Range
Plug and Play
Multimedia
Built-In Speaker(s)
RMS Rated Power
Number of Built-In Speakers
Design
Ceiling Mountable
Colour of Product
Product Type
Display
Built-In Display
Power
Power Source
Power Consumption (typical)
Power Consumption (economy Mode)
Power Consumption (PowerSave)
AC Input Voltage
Operational Conditions
Operating Relative Humidity (H-H)
Operating Temperature (T-T)
Weight & Dimensions
Weight
Packaging Content
Carrying Case
Manual
User Guide
Handheld Remote Control
Batteries Included
Quick Start Guide
AC Adapter Included

Expert Reviews

26 October 2015

Gone are the days when projectors were only used for presentations; now you can watch movies on your wall and not compromise on quality, sound and space. So, when Acer placed this short throw... Read more…

User Reviews

(1)
Reviewed 17 March 2016 by Amazon Customer
(Verified Purchase)

This product is good but it's not really a portable. It is smaller than others but there's no battery installed to take it away from home. It should be plugged into electricity all the time. Also,... Read more…

Running Cost

Hours of Use Per Day: hours
Show running costs over: years
Electricity cost when switched on $19.37
Electricity cost when on standby
@ $0.105008202 per kwh - Edit electricity price and usage
kwh per hour
kwh per hour left on standby
Electricity price $per kilowatt hour
Annual electricity price inflation %
Water cost when switched on
@ $0.00149891736 per litre - Edit water usage and price
litres per hour
Water price $per litre
Annual water price inflation %
Submit Energy Consumption Figures
Total running cost over 5 years $19.37
Running costs for this projector have been estimated based on other similar projectors. If you know how much electricity and water the Acer K138STuses then please let us know by entering those figures in the boxes above.
0.13T
Running this projector over 5 years will generate 0.13 tonnes of carbon dioxide (CO2).
4
To offset that much CO2 you would need to plant 4 tree seedlings and grow them for 10 years.

+- Manufacturer's Description

Product Identifiers

Manufacturer Part Numbers acer k138, acer k138s, acer k138st, acer p238840, acer n167504, acer k138sti, special k138, acer 1280x800, acer n167504w, special k138s, acer p238840p, acer acerk138, special k138st, acer mrjlh1100, acer acerk138s, mrjlh11001 k138, acer mrjlh1100a, acer acerk138st, mrjlh11001 k138s, acer acerk138sti, mrjlh11001 k138st
Barcodes 00888863023677, 04053162882102, 04713147866250, 04713147866267, 04713147866274, 04713147930852, 04713392225673

See How Other Projectors Compare to the Acer K138ST

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$ 365.99 $430.99
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50% Lower RMS Rated Power

Asus P3B vs Acer K138ST

Asus P3B vs Acer K138ST
Asus P3B Acer K138ST
$ 471.99 $430.99
Hugely Better User Reviews
Two More USB 2.0 Ports
10,000h Longer Lamp Service Life
Newer by Five Months
$41 More Expensive
Lower Number of Colours

Philips HDP1690 vs Acer K138ST

Philips HDP1690 vs Acer K138ST
Philips HDP1690 Acer K138ST
$ 1,299.99 $430.99
23W Higher RMS Rated Power
Significantly Better User Reviews
Two More USB 2.0 Ports
Three HDMI Ports
$869 More Expensive
Older by Five Months
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