A compressed energy crystal, abbreviated CEC, was a type of lightsaber crystal. CECs were also the central component in Ves Volette's light sculptures. Removing the crystal from a sculpture would result in the collapse of the gaseous light within. Certain compressed crystals, when used in lightsabers, caused the energy blade to take on a peculiar "pulsating" appearance with a thinner core. While it seemed to effect only certain types of crystals, compressed crystals appeared to be more precise than the normal blade.