How is this electrical effect element being created?

Development Rendering
1

Hello,

https://vimeo.com/119716203

At 0:18 of this video, there is an electrical effect that seems to be using some snappy procedural generated “beam-like” elements. Does anyone know how this is being done in unreal?

Best,
.

2

A combination of Beam module and a normal emitter with a lightning flipbook.