HI
My understanding is, with Incandescent lights, a larger amount of the energy used is transformed into HEAT energy not LIGHT energy.
With Fluorescent lights the heat is less and they still put out a good amount of Visible Light Energy.

Grabbing a Fluorescent Tube or a CFL I have yet to be burned, but touch a HOT light bulb and you will know it.
Dreadscale Reviewed by Dreadscale on . Whats The Diff Whats Diff Between The Fluorescent Lights And The Incandescent Lights? Rating: 5