Posted on May 8, 2014
The P2B may be the least expensive of the “pocket” projectors we reviewed. It also claimed to be the least bright, but proved to be especially capable. This 1.4 pound projector comes with a separate power brick, but it also has an internal battery that Ron reports is good for about 90 minutes of presenting. It’s battery operation is its uniqueness in this year’s projector report, but not its only strength. Consider that with a claimed 350 lumens it had to compete with two 500 lumen, and 800 lumen and a 1000 lumen projector.
The Asus P2B managed around 270 lumens on AC power, in brightest mode, but served up some pretty good color right at 250 lumens. Switching to battery, that same good looking Standard mode dropped to 191 lumens still almost double any other pocket projector we’ve tested, running on batteries.
The thing is, the brightest two of these five projectors managed only high 600’s and low 700 lumens in their brightest modes which had particularly poor color. Neither were able to do even 500 lumens with good color (more like 400 and change), so despite claims, the Asus holds up reasonably well in brightness. A step down from the others, but still very usable. Like the others it offers a powerful set of media players to do Microsoft Office documents, pdfs, videos and stills. A micro-SD card slot and USB make running PC free presentations easy.
So, although not the brightest around, it’s aggressive pricing, and especially it’s battery capabilities and WXGA resolution make it an excellent choice for that teacher needing a small projector for field trips, or anywhere where electric isn’t 100% guaranteed. Perhaps the real appeal is in rural environments around the world, but it’s a very capable small led projector, and one with a two year warranty compared to the 1 year most competitors provide. An easy choice.
This was the surprise of the group. While priced aggressively it claims 500 lumens and has to slug it out, feature set wise, with other WXGA projectors at 500, 800 and 1000 lumens. Turns out though, that in brightness, Optoma was the most conservative, and as it turns out, unless selecting a “brightest mode” with poor color, none of the other projectors in this group measured significantly brighter.
The ML550 was the lightest projector of the five, the only one under 1lb. but with its power brick, it still is a two pound package. No one’s going to complain about a usable 441 lumens with respectable color (the ML550 did measure higher than it’s 500 lumen claim, in its brightest mode). Like the others the ML550 is well endowed with player features supporting Microsoft Office, pdfs, and a large range of photo and video formats.
The ML550 does support 3D, just add 3D glasses, but note, like many of these small projectors it does not support Blu-ray 3D (packed format).
Although the ML550 didn’t have any major advantages over the Acer, Vivitek or Canon, it sells for significantly less than any of those. In other words with all but the Asus P2B, our Pocket projectors all measure in the 400 to 500 lumen range with good color. The ML550 was as well endowed with features as any of the others, including support for MHL. Although I prefer pocket projectors to have their power supplies built in, and favor the lower profile but larger footprint variety, the ML550 deserves this award for simply offering essentially all the features and performance of noticeably more expensive led projectors.
What 1080p projectors can be charged by a power bank?
Officially, I don’t think there are any sold in the US. There may be, but I’m unaware. There are a couple of 720p pocket projectors – I reviewed an HB Opto a year ago, although I’m not sure if you can find that one. There are others.
But there are very few LED projectors that are 1080p (other than all the Casios which are relatively “big” projectors and draw almost as much power as typical 3000 lumen projectors -a couple hundred watts. LG has the PF85U which we recently reviewed, but no battery option. Projectors that have external power supplies (power bricks) have DC inputs, the rest have standard AC inputs. If you want to rig up a battery system, sticking to a projector with a DC input is simpler.
OK, that said, you can rig a battery pack for any projector – or any device for that matter. The problem is mostly that for a typical low cost 1080p projector you might need 5-10 pounds of battery to have any real battery life – like an hour’s worth.
For example, a few years ago, I took one of those auto battery chargers you can buy at Home Depot, etc. Those are 12 volt DC systems, and most have a cigarette/charger jack. Some of the more expensive ones may even have a 110 volt AC output, saving the need for an inverter.
Anyway, I took one of those, along with a 300 watt inverter, which plugged into the car adapter- total weight about 12 pounds, along with a basic (non-LED) projector, out on a campaign trip. The battery had enough juice to power that projector for about 2 hours, which was the goal, we watched a movie using the projector – shining onto a sheet, in the middle of nowhere. -art
I already have this Micro Projector but I’m disappointed :
The only good thing about this Micro Projector is using my PINENG-968 to charge it.
I wanna get rid of this and get a better one.
Hi Joe, I can understand your frustration. Not sure what you were
looking for in a pocket projector, but 12 lumens, is, well, pathetic.
8-20 lumens was about the brightness range when pico projectors started
shipping 4 years or so ago.
I figure it takes 50 lumens to do anything useful, or at least useful when projecting larger than a 15″ image.
you are shopping for a newer one, and want to keep it pretty small,
consider the Optoma PK320. 50 lumens, 100 on AC or battery pack.
That’s the best small one I’ve reviewed, even though, that was a couple
of years ago.
Thoughtful analysis , Incidentally , if you is interested in merging of two images , my husband encountered a service here http://bit.ly/1NAFo7T
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