Technical Data - Profoto B2 250 AirTTL User Manual

Technical data

Max Energy
Energy range f-stop
Energy range Ws
Energy control increments
Recycling time
20
Modeling light
Mode control
Flash duration Normal mode (t0.5)
Flash duration Freeze mode (t0.5)
Energy stability Normal mode
Energy stability Freeze mode
Color stability Normal mode
Color stability Freeze mode
Light spread with built-in reflector
Guide number @ 2 m, 100 ISO with
Magnum reflector
Battery
Battery voltage
Battery Energy / Capacity
Battery operating temperature
range
Battery capacity
Battery life
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250 Ws
9 f-stop (2.0-10.0 ; 1/256-1/1)
1.0-250 Ws
Dials are progressive, turning the dials quickly
will result in larger energy change and vice
versa.
0.03-1.35 s (Quick burst up to 20 flashes/
second)
LED 9W (Equivalent of 50W Halogen)
Freeze (shortest flash duration) or Normal (color
balanced) mode
1/9300 s (1 Ws) - 1/1,000 s (250Ws)
1/15000s (1Ws) - 1/1,000 s (250Ws)
±1/20 f-stop flash to flash
±1/20 f-stop flash to flash
±150 K over range; ±20 K flash to flash
±800 K over range; ±50 K flash to flash
70 degrees
32 2/10
Model: Exchangeable Li-Ion battery 4S1P
Type: PCA1322-0000
Nominal voltage : 14.4 V
Charge voltage : 16.8 V
21.6 Wh /1.5 Ah
Charge: 0 °C to +45 °C (32 °F to +113 °F)
Discharge: -10 °C to +50 °C (14 °F to +122 °F)
Up to 215 full power flashes
300 charge cycles (80% capacity left)