The New Profoto D1 ushers in a new standard for quality and consistency in professional monolights. Borrowing features and technology from the Profoto D4 and all new Pro8Air, the new Profoto D1 gives the best of all worlds in a small, easy to use, monolight. The Profoto D1 Air is fully digital, not just on the display panel, but in the flash output control circuitry as well. This ensures consistency in flash-to-flash color temperature and flash output. The dual mode SMPS capacitor charging technology ensures the flash-to-flash precision which is essential for today?s photographer. Offering color consistency of 40 degrees Kelvin from flash to flash and output constancy of 1/50th of an f/stop, no other monolights even comes close. The new Profoto D1 monolight system, available in 250, 500 or 1000 watt-second versions, can be adjusted from full to 1/64th power in 1/10th stop intervals. This gives you a range of seven f/stops in precise, repeatable and consistent output. The units can be used with any worldwide voltage, from 90?130 and 200?240 volts without having to change the modeling light. The new Profoto Air system enables you to remotely control and trigger your flash from as much as 300 meters and replaces the sync cable.