Another very interesting video of 3 triangle shaped lights over Pingguoyuan, Beijing CHINA. This video was shot on February 13th 2011 and looks a lot like the recent footage posted here: Triangle UFO filmed over Pingguoyuan Beijing.
[youtube]http://www.youtube.com/watch?v=FoAoiUlEUBc[/youtube]
Unfortunately there was no date or time for the first video, but could they be the same object?