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13 Reasons For
Low Running Costs
The EH331 is in the cheapest 18% of all 64 latest multimedia projectors that we have looked at for 1 year running costs. Based on typical usage levels and energy prices, we estimate the 1 year running cost of the EH331 is only £76.
Optoma projectors have good reviews on average and across all projectors Optoma is one of the better rated brands.
Only Released Five Months Ago
The EH331 was only relased by Optoma five months ago. Newer multimedia projectors like this one are likely to have more advanced features.
Supports Full HD Projection
The Optoma EH331 supports Full HD projection. Most of the other projectors that were released around the same time as the EH331 do not support Full HD projection.
We think you might also be interested in some of the other projectors which support Full HD projection currently available including the Benq 9H.JED77.23E[plb_3766900_price], or the Viewsonic Pro7827HD[plb_3305117_price] which is cheaper; or the Acer Predator Z650[plb_3696444_price] which has better reviews.
Supports 3D Image Projection
The Optoma EH331 supports 3D image projection, as do most of the other projectors that have been around for the last year.
It may also be worth considering one of the other multimedia projectors which support 3D image projection currently available including cheaper data projectors such as the Benq 9H.JED77.23E[plb_3766900_price], or the Viewsonic PJD7831HDL[plb_3755325_price].
We compared all the other projectors which also support 3D image projection to this data projector and we think the Viewsonic PJD7525W[plb_3753194_price] is also worth considering.
Has a Built-In Speaker
The Optoma EH331 has a built-in speaker, as do most of the other projectors that have been around for around the same time as the EH331.
Alternative multimedia projectors with a built-in speaker currently available that you might also want to look at include the Benq 9H.JED77.23E[plb_3766900_price] which is cheaper; or the Acer Predator Z650[plb_3696444_price] which has better reviews.
There are a number of alternative multimedia projectors which also have a built-in speaker which you might also want to consider including the Viewsonic PJD7525W[plb_3753194_price].
+8 More reasons for
1080p (1920x1080) Native Projector Resolution
This multimedia projector has a native projector resolution of 1080p (1920x1080), which is typical of many recently released projectors.
1920 X 1080 (HD 1080) Graphics Resolution
The Optoma EH331 supports a maximum resolution of 1920 x 1080 (HD 1080). That's over six times the resolution of a 640 x 480 (VGA) projector, which is the most common resolution supported by recently released similar spec data projectors. 640 x 480 (VGA) is also supported by this projector. In addition, this data projector support graphics resolutions of 800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 768 (WXGA) and 1360 x 768 (WXGA) and 1600 x 1200 (UXGA). The resolution of all recently released projectors ranges from 640 x 480 (VGA) (worst) to 1920 x 1200 (WUXGA) (best).
Two Built-In Speakers
The Optoma EH331 has more built-in speakers than most of the projectors that were released around the same time as the EH331. This data projector is a two built-in speaker multimedia projector compared to most of the new projectors which only have one built-in speaker.
Quite Long Lamp Service Life
With a lamp service life of 10,000 hours, the Optoma EH331 has a quite long lamp service life compared to most of the other projectors that were released around the same time as the EH331. The shortest lamp service life of new projectors is 1,500h, the longest is 30,000h, and the average lamp service life is 6,900h.
Quite Quiet Noise Level
At only 29 decibels, the Optoma EH331 has a fairly quiet noise level compared to most of the other recently released similar spec projectors. Recently released projectors have noise levels of between 22dB and 40dB.
There are a number of alternative 29dB noise level multimedia projectors currently available that you might want to consider including the Optoma W341[plb_3452857_price] which is cheaper.
At only 298 millimeters, the Optoma EH331 is fairly narrow compared to most of the other latest projectors. Across all the similar spec multimedia projectors that have been on the market for around the same time as the EH331 the widths range from 110mm to 590mm, and the average width is 370mm.
Similar spec projectors that have been available for the last year have weights of between 2.7g and 28kg. At only 2.2 kilograms, the Optoma EH331 is fairly light compared to most of the other latest similar spec multimedia projectors.
9 Reasons Against
£165.12 Price Increase
In the last couple of weeks the EH331 has increased in price by £165.12.
Does Not Support WiFi Connectivity
Like most of the other projectors that were launched in the last 12 months, the Optoma EH331 does not support WiFi connectivity.
Quite Small Uniformity
The average uniformity of latest projectors is 79%, and the uniformities range from 70% to 90%. When compared to other recently released similar spec projectors, the Optoma EH331's uniformity of only 70 percent is one of the smallest.
Very Small Lamp Power
The Optoma EH331 has a quite small lamp power (only 195 Watts) compared to most of the other new projectors. The lamp power of projectors that are a comparable age to the EH331 range from 190W to 470W.
+6 More reasons against
Very Low Maximum Horizontal Synchronization
Across all the latest projectors the maximum horizontal synchronization range from 0.1kHz to 100,000kHz, and the average maximum horizontal synchronization is 13,000kHz. The Optoma EH331 has a quite low maximum horizontal synchronization (only 91 kilohertz) compared to most of the other newly released multimedia projectors.
Very Low RMS Rated Power
The lowest RMS rated power of projectors that were released in the last 12 months is 1W and the highest is 20W. At only 2 Watts, the Optoma EH331 has a fairly low RMS rated power compared to most of the other comparable spec multimedia projectors that have been available for a similar time to the EH331.
Only One VGA (D-Sub) Port
The Optoma EH331 is a one VGA (D-Sub) port multimedia projector.
Only One HDMI Port
Most projectors that have been on the market for a similar time to the EH331 have between one and four HDMI ports, including the Optoma EH331 which has one HDMI port.
Only One Audio in Port
The Optoma EH331 is a one audio in port data projector.
1 Other reason to consider the Optoma EH331
Average Projector Brightness
The Optoma EH331 has a relatively average projector brightness (3,300 ANSI lumens) compared to most of the other new projectors.
If this data projector projector brightness is too dim for you then you might also want to consider the Acer P1502[plb_3878311_price] (3,400 ANSI lumens and cheaper).
Native Projector Resolution
3,300 ANSI lumens
Vertical Keystone Correction
Maximum Horizontal Synchronization
Minimum Horizontal Synchronization
1.2 - 12
Supported Aspect Ratio
Compatible Screen Size
27.88 - 305.3
Native Aspect Ratio
Supported Number of Colours Display
1.073 billion colours
Service Life of Lamp in Economic Mode
Lamp Service Life
1.48 - 1.62:1, 1.48 - 1.62
2.5 - 2.6
Focal Length Range
21.86 - 24
3D Image Projection
640 x 480 (VGA), 800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 768 (WXGA), 1280 x 768, 1360 x 768 (WXGA), 1600 x 1200 (UXGA), 1920 x 1080 (HD 1080)
Full HD Projection
Analog Signal Format System
NTSC, NTSC, NTSC 4.43, NTSC, NTSC M, PAL, PAL, PAL B, PAL, PAL D, PAL, PAL G, PAL, PAL H, PAL, PAL I, PAL, PAL M, PAL, PAL N, SECAM, SECAM, SECAM B, SECAM, SECAM D, SECAM, SECAM G, SECAM, SECAM K, SECAM, SECAM K, SECAM K1, SECAM, SECAM L
Frame Sequential, Frame packing, Side by side
Ports & Interfaces
Serial Interface Type
Audio Out Port
Audio in Port
Composite Video in Port
USB 2.0 Port
VGA (D-Sub) Port
AC Power in
Optical Disc Player
Noise Level in Economy Mode
Horizontal Scan Range
15 - 91
Vertical Scan Range
24 - 85
On Screen Display Language
ALB, CHI (SIMPL), CHI (TR), CZE, DAN, DEU, DUT, ENG, ESP, FIN, FRE, GRE, HUN, IND, ITA, JPN, KOR, NOR, POL, POR, RUM, RUS, SWE, THA, TUR, VIE
On Screen Display
RMS Rated Power
Cable Lock Slot
Cable Lock Slot Type
Power Consumption On Standby
Typical Power Consumption
Power Consumption in Economy Mode
Auto Power Off
AC Input Frequency
50, 50/60, 60
AC Input Voltage
100, 100 - 240
0 - 3000
Relative Humidity Operational Range
0 - 85
Operating Temperature Range
5 - 40
Weight & Dimensions
Remote Control Type
Handheld Remote Control
Quick Start Guide
Audio Output Port
Hours of Use Per Day: hours
Show running costs over: years
Electricity cost when switched on
Electricity cost when on standby
@ £0.139 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 %
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Water cost when switched on
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litres per hour
Water price £per litre
Annual water price inflation %
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Total running cost over 5 years
Running costs for this projector have been estimated based on other similar projectors. If you know how much electricity and water the Optoma EH331uses then please let us know by entering those figures in the boxes above.
Running this projector over 5 years will generate 0.38 tonnes of carbon dioxide (CO2).
To offset that much CO2 you would need to plant 10 tree seedlings and grow them for 10 years.
Previous and future annual running costs of the Optoma EH331 assuming future electricity price inflation of 0.0600% per year. Edit inflation assumptions