Profoto D2 500 AirTTL Monolight Studio Flash

Power Output (Max Watt Seconds) :
500Ws

Modeling Light Wattage :
300 W halogen

Flash Duration :
(t0.5): 1/2600 sec in Normal mode max power - 1/63,000 sec. in Freeze mode min power

Recycle Time :
0.03-0.6 sec (quick burst up to 20 flashes per second)

Trigger Options :
Air radio slaves, optical (IR), sync cord
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8 Channels / 6 Groups (A-F)
Yes, via optional Air Remote TTL-C/N, Air remote, Air USB (Profoto Studio)
Up to 1000' (300 m) for normal triggering
Up to 330' (100 m) for TTL with optional Air Remote TTL-C/N

Fan Cooled :
Yes

User Replacable Flashtube :
Yes

User Replacable Modelling Light :
Yes