demandflex Value Series ballasts are high efficiency program start ballasts with the flexibility to be tuned at the circuit level to set power levels during initial installation.

Tuning allows optimization of light levels for maximum baseline energy savings. Once tuned, demandflex ballasts will operate at the selected level indefinitely; no further control is required. Ballasts can be re-tuned if lighting requirements change. demandflex Value Series ballasts can be controlled by a number of Douglas products and systems.