WHILE USING THE PROJECTOR, PLEASE CONNECT THE POWER ADAPTOR WITH THE PROJECTOR FIRST, AND THEN CONNECT THE POWER ADAPTOR WITH THE POWER. IF YOU WANT TO PLAY ANY FILE THAT IS NOT INCLUDED IN THE ABOVE TABLE, YOU MIGHT ENCOUNTER TROUBLES, AND PLEASE TRANSFORM THE FORMAT FIRST SO AS TO MAKE IT PLAY SMOOTHLY AND NORMALLY. ONLY SUITABLE FOR DARK PLACE PERSONAL ENTERTAINMENT CINEMA, NOT SUITABLE FOR BUSINESS, TEACHING, PRESENTATION PPT DOCUMENTS, ETC.WHERE STRONG LIGHT DURING THE DAY, NOT A SUBSTITUTE FOR COMPUTER MONITORS, REPLACE TV.