What is the best alternative to Canon Projector Rayo R4?
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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
Although the colors can be a bit too vibrant, they can be tuned down in the settings to make them balanced. The projector is also bright, so you can use it in a family room for watching movies. Although the resolution is 720p not 1080p, the PH550 has overall a brighter and more detailed picture than most portable projectors. See More
There is no crosstalk (picture meant for one eye is seen by the other) in 3D mode, which is an issue for a lot of projectors. On the downside, there is just one 3D color preset and also a few motion artifacts can be seen. Besides that, the projector is bright and therefore works well with 3D content. 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