Review Contents
Highly Rated Projectors
Ease of Use
Intended Use:
Mobile Presentation
Acer K330 Projector Acer K330
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Street Price: n/a
3D: PC 3D Ready
Weight: 2.9 lbs
Aspect Ratio:16:10
Lens Shift:No
Lamp Life:20,000 Hrs
20,000 (eco)
Warranty:1 year
Connectors:  Composite, VGA In, HDMI, MemoryCard, USB (x2),
Video Formats:  480i, 480p, 720p, 1080i, 1080p/60, 1080p/24, 576i, 576p

Acer K330 Portable LED Projector

Marc Davidson, February 17, 2012

Few rainbow artifacts. One of the more pleasant surprises with the K330, and one of the issues that helps its video quality, is that it shows hardly any rainbow artifacts. I'm sensitive to seeing the rainbows, and saw fewer with the K330 than with any other single-chip DLP projector I've ever used.

With data images, I saw them only on a test image that's designed to make them easy to see, and even on that screen I saw only a hint of the artifacts. With video, they were a bit more obvious, but decidedly occasional and fleeting. Most people probably won't see any rainbows at all, and even those who are sensitive to seeing them are unlikely to find them bothersome.

Highly portable. The K330 weighs 2.9 pounds and measures 1.8" by 8.6" by 6.6" (HWD), making it roughly equivalent to a book in size and weight. To make it even easier to carry, Acer includes a soft carrying case complete with a pouch to hold the power cord, credit card size remote, cables, and any other items, like USB memory keys, you need to carry. Even with the case, the projector is small enough to fit in a briefcase.

Quick and easy setup. Setting up the K330 is almost trivial. To show images stored in internal memory, simply take the projector out of the case, point it at a screen, plug in the power cord, turn it on, and focus. To show images from an SDcard, USB memory key, computer, or video source, the only additional step is to plug in the card, key, or cable.

Low running costs. The red, green, and blue LEDs in the K330 offer a 20,000 hour rating, which means they're meant to last the life of the projector. This potentially translates into far lower running costs compared to lamp-based projectors, with typical lamp lifetimes of 2000 to 3000 hours.

Usable audio. The audio systems in small projectors are often not worth having, so to call the K330's audio usable is high praise. The sound quality for the 2-watt speaker was a little tinny, but it was also loud enough to fill a small conference room and high enough quality for words to be easily understandable for watching a movie.

Test Results and Connectivity

Brightness. I measured the K330's brightness at 440 lumens in its Bright mode, or 88% of its rating. Other presets ranged from 287 to 334 lumens, with Eco mode dropping brightness by about 11%, to 393 lumens for the Bright mode. For our tests, I found the K330's image bright enough for comfortable viewing in theater dark lighting for a 92" diagonal image at the 16:10 native aspect ratio. Even with moderate light, the image is usable at that size, although it's a little washed out.

Good brightness uniformity. The K330 did an excellent job in our tests of maintaining uniform brightness across the screen, with a measured uniformity of 88%. That's just enough difference to see on a solid white screen if you look for it, but not enough to see otherwise.

Connectivity. The back panel on the K330 offers more connection options than you might expect in such a small projector, starting with a VGA port for a computer or component video source, an HDMI port for a computer or video source, and a composite video port. In addition, there are two miniplug jacks -- one for AV input and one for audio out -- plus an SDcard slot for a memory card, a USB Type A port for a USB key, and a mini USB port for connecting to a computer to transfer files to and manage files in the 2GB internal memory.

Also worth mention is that Acer says the K330 can read more than 20 file formats. I confirmed just a few in my tests, including PowerPoint, PDF, and JPG files. Other choices, according to Acer, include Word and Excel files and most common image, video, and audio formats.

Review Contents: Data and Video Quality Strengths and Test Results Limitations and conclusion

Reader Comments(10 comments)

Posted Mar 5, 2014 5:41 PM

By Robert

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What kind of success is anyone having using this projector with power point. I would like to download my powerpoint presentation onto the internal memory and use it from there.


Posted Mar 5, 2013 11:59 AM

By Linda

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When I got my Acer K330 projector, I tried to show a Power Point presentation from a USB flash drive. This projector reformatted my slides! Text that should have been on one line was pushed into two, paragraphs would not longer fit on the slide, and it could not be fixed by adjusting the aspect ratio. Plus, it didn't even show my SmartArt graphics. The User Guide gave "troubleshooting" guidelines, which I followed, but that didn't resolve the problem either. Finally, I spoke with a guy with Acer Tech Support, who said I'd have to send the machine for repairs in Texas. This is fresh out of the box! Has anyone else had this problem, and is there an easy fix?

Posted Jun 23, 2012 3:53 AM

By rohaya

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i need a mini projector that can be used in classroom.can any one suggest.

Posted May 29, 2012 8:07 AM

By Janmanni

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Hi. This is a nice review, but it really doesn't explain why the image quality is just ok for some "occasional" movie. It has the resolution, lumens and good uniformity and what not. So what is it that it doesn't have? I am of course not expecting movie theater quality.

Posted May 1, 2012 6:17 PM

By Jonathan

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Whats the throw compared to the k11? I'm looking to do a direct swap out. Will the throw be similar you think?

Posted Apr 16, 2012 8:17 AM

By Rishelle

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Hi, I am looking for a reliable, good quality led projector for my business. I have run into a couple good names including this one, the Acer K330 and quite a few others like the ASUS P1. I need something lightweight with good vision quality, would it be safe to say this is the right way to go? Thanks in advance for your help

Posted Mar 20, 2012 1:56 PM

By Yang

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No "manual zoom", but it has "digital zoom". Does digital perform the same function as manual zoom?

Posted Mar 1, 2012 6:17 PM

By Bob

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Yes - it's called an inverter - but you have to get one powerful enough to match the current draw, and they get expensive.

Posted Feb 26, 2012 11:23 PM

By Ty L

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Did you try it at other resolutions like 1280x768 to see if you could remove the scaling artifacts?

Posted Feb 19, 2012 1:04 PM

By zino

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Hi, Can anyone please tell me if a car charger for the acer k330 exist, if yes where can I find one. Thank you

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