Light orbs are orbs that cast a greenish light that is used as both a power source and a light. They appear through out tunnels, deeper, freefall and closer. The colonists trade these with the coprolites. Drake uses them in most of his tech. He also said that he would make a fortune off them if he patented them in closer.The Styx have flashlight-like devices that require two light orbs to power it.It is unknown how they create light and where it is found.