The Lithonia Lighting T12 and T8 Emergency Ballast, 600L Back up HID Emergency Balla is a modern, black metal ceiling fixture designed for industrial use.  and anti-rust special features, making it suitable for outdoor spaces like conference rooms. The 600L back-up HID emergency ballast provides reliable lighting in the event of a power outage, ensuring safety and visibility in critical situations. With a warranty of 5 years and UL specification met, this emergency exit unit is a dependable and stylish lighting solution for any industrial setting.