The Original FlashMaster is a 600ws unit with 5 outlet heads, 4 with low voltage 12v 25watt and 1 high voltage with 120v 150w. The most notable thing about the FlashMaster Power Supply is that it uses a unique "ratio-plug" system. This will result in a different pre-set level of power to each lamphead. The rugged construction provides durability whether you're on the go or in the studio. The FlashMaster power distribution system with up to four light capacity provides all the light you will need. Over 80 Quick-Change™ accessories make modifications a snap.