This projector 100% fulfilled my expectations. It is relatively low and the image is very good and bright. There are 2 levels of brightness and for each again the Eco mode. When operating it without power supply (USB only), it is bright enough for normal office with moderate daylight. If the room has large windows, the operation of the power supply is recommended, as in a lot of daylight, the image / is otherwise dull dark. Direct sunlight is of course fatal for this projector. Then you see nothing more.
The Eco mode I can not recommend it because it is probably meant more than whisper mode rather than power-saving mode. The Beamer is indeed quieter (then almost no longer heard), but for my taste it is then too warm, what the life of the hardware certainly shortened significantly. Since the projector is always used (by me) at presentation, where they speak most, it's not really noticeable in normal mode.
As source only USB (2 & 3) can be used. This is for the purpose but also adequate, but the projector with a built-in wireless would certainly certainly more interesting and with a small supplement also feasible ... In Windows 7 and 8, the projector will be recognized immediately and can be used without extra software installation.
Projections with a diameter of up to 250cm is no problem and also look good.
Every now and then I use the Beamer also to watch movies, for example at the hotel to watch it. Also he gets out without complaint and also in acceptable quality.
Resumé: for the purchase price of less than 180 take-along-have-projector, the device is highly recommended.
