Others have mentioned that Cycles can not do Firefly style lighting, which is not the case.

Learn the light path node..... You can use a prop to duplicate the Firefly point light in Superfly, and get the same results.

The other styles of light falloff can be done even thou we don't have the lightfalloff node to do so in Superfly easily.

Completely adjustable, just like in Cycles. This is using a ball prop, scaled to 10%, just off to the right in the scene.

This is constant falloff shader, which is very simple to set up and makes it easy to do in Superfly.

This can be added into any emitter shader, and terminate the light at whatever distance from the source you see fit, Or even terminate it after X number of bounces by using ray depth....

---

Some things are easy to explain, other things are not........ <- Store ->   <-Freebies->