The 320 watt driver is the biggest in the Flex II range. It powers up to 30 Flex II 10, 14 Flex II 20 or 12 Flex II 25 bars from one unit, so an entire propagation room runs off a single supply. That keeps the wiring simple on a large rack.
It accepts 100 to 240 volt mains for direct UK use. A 1 year warranty applies.