What is the best alternative to LG PH550?
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The projector is usable even when there is no power supply provided. Though its worth mentioning that you only get 160 lumens of brightness (half of the maximum) when running the projector on battery. The battery lasts for about an hour, which should be enough in case you need to give a short presentation with no power outlet available. See More
The 640 x 480 resolution produces a low-quality picture. Pretty much the only review for this projector is the original document from Canon, so there is no objective information available about the picture quality. They did state a contrast ratio of 800:1, which falls far behind the best portable options. See More
Celluon PicoPro's brightness of 32 lumens is ok for use for dark viewing environments. However, the image quality suffers a lot in very bright environments. Under moderate lighting, the user can limit projection size to 14-15 inches to attain clear images which makes Celluon PicoPro suitable mostly for one-on-one presentations. See More