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The Profoto ProBallast 800W HMI Ballast is a flicker-free, multi-voltage power supply for the ProDaylight HMI light head. The ballast, which has a Silent Mode, has a totally quiet passive cooling system and frequency switching between 100Hz and 300Hz. Line over-voltage and overheating protection is built in. As in all Profoto products, lamp sockets are robust, safe and durable.
Flicker-free electronic multi-voltage (100 - 240V AC, 50 / 60 Hz) ballast for international use. The ballast has a passive cooling system for quiet operation and frequency switching between 100Hz and 300Hz, as well as and silent mode. Line over-voltage and overheating
protection is built in. Lamp sockets are safe and durable.