LED Ready High Bay Fixtures are similar to traditional fluorescent high bays, however they do not require a ballast for operation. The need for disconnecting the ballast and re-wiring the fixture is eliminated. LED Ready High Bays have non-shunted sockets and are pre-wired for single end LED T8 tubes. LED ready high bay fixtures are great replacements for 4-lamp T8, 6-lamp T8, and 8-lamp T8 high bays. They are long lasting and more energy efficient with the use of LED T8 lamps.