I've bought these 3D glasses for a projector from Acer. Now I can not say, of course, how well the works! In other projectors, but I have to set up needed 15 seconds. Once pressed for 5 seconds the button on the glasses, then another 2 seconds, and already had the 3D effect there. Many say yes, that the spectacle passes too little light. This I can not confirm. I feel the brightness to be very pleasant. (The brightness of my projector has 3000 ANSI lumens). Charging via the USB port also goes without a hitch. However, no power adapter is included, but they can be easily recharged via the PC, which at a charging time of approximately 2 hours and should not be a big problem. The enclosed protective case for the glasses is also quite nice, and actually processed very high quality. I would buy the glasses In any event, once again, that only is what to look for, that this spectacle is only capable of 120 Hertz. The newer standard is 144 Hertz. My projector supports only 120 Hertz, so it went fine for me. Whose Beamer but 144 Hertz can, should definitely buy one to matching glasses (even if these glasses would also go.)
