This is an electronic ballast for the Altman 575 or 1200 watt HMI fixtures.
Electronic ballasts are preferred over magnetic ballasts as power sources for HMI lights because they are lighter, quieter, and are flicker-free, which makes them ideal for video or motion picture use.
- Dimming control allows powering down to 50% of full.
- Forced air cooling.
- Fuse circuit protection.