if you are into archviz this is a package you should really be excited about, a set of different lights not only are they unique but can be customized at will in realtime, its hard to believe that such a package can be free but it is, this has been made available by Ander_Goico

Click image to downlaod the lamp:

how to use the light in blender

his youtube channel: https://www.youtube.com/user/LoQueTeando