Novatron D1000 are the most advanced power packs. They are fan cooled with fully integrated digital controls and readout. Power output is displayed on a 1/2 inch tall LED display. It is easily visible from many feet away, under normal room lights. The D1000 has misfire alarms. Sync voltage is compatible with most digital cameras. The D1000 supports four modeling lamps, each up to 250 watts, for fabulous pre-visualization.