A compressed energy crystal, also called compressed crystals and 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. Lightsaber blades created by compressed crystals appeared to be more precise than normal blades.