cycles render engine - How to control the strength and intensity of IES lights? - Blender Stack Exchange
IES Lighting in Blender | Blender Render Farm | Blendergrid
Blender Guru - Did you know that Cycles now allows for IES lighting? Download the add-on by Lockal here: http://blenderartists.org/forum/showthread.php?276063-IES-Lamps-to-Cycles It's great for realistic architectural lighting! | Facebook
Lantern rendered using an IES texture in Cycles, and caustics in LuxRender. : r/blender