Location Multi-function Ballasts save space on set and make plugging up discharge heads almost as easy as tungsten. A rolling rack can power up to 18 lampheads via multi-core cables. Standard ARRI heads from 200W to 4kW can be used. Standard DMX EB 2.5/4kW 230V: L2.76440.0 L2.77641.0 EB 2.5/4kW 115/230V: L2.76675.0 L2.76676.0 EB 575-4kW 230V: L2.76671.0