These light leaks use cool tones of blues to greeny / yellows. I find they work well with hi-tech / matrix style compositions and the cyan tint compliments lens flares.
They can all be used as wipes to move from one image to the next. Best way to use them is to place then over a wipe using the 'screen' option of the composition / layering tools.
If you don't know, this part 9 in a whole collection of light leaks, flares, film burns, wipes and glows. The whole collection is available here: http://projectorfilms.blogspot.co.uk/p/free-hd-downloads.html
The set of 7 clips (1080p ProRes) in this set can be downloaded here (105MB)