On vacation in costa rica on pacific side watching a lightning storm at night well offshore, storm was so far away out to sea could not hear the thunder. snapped about 20 photos of the lightning and this photo immediately caught my attention. never seen lightning in the shape of round balls, and it also has a strange v shape. none of the other lightning photos looked anything like this, took the photos over about a 20 minute period. you can see the palm tree and waves in foreground. never actually saw the round lights until reviewing photos some minutes later and noticed it looked strange. please explain how lightning can look like this. please feel free to examine photo though i would like to remain anonymous. thanks.