Light is a Power Set that is included in the Fight for the Light DLC, that was released September 6th, 2011.
Characters with the hard light power will find themselves weilding the power rings of the Green Lantern or Sinestro Corps, for heroes and villains respectively. Heroes will weild the green power of Will, while villains use the yellow power of Fear. Hard Light characters can chain deadly and devastating combinations called Construct Combos by using a power followed by certain weapon combos. Access to hard light powers is included in the Fight for the Light DLC. Hard Light powers have two distinct specializations: Assault and Support.