Profoto B1 Location Kit 2x 500w with AirSync, 4 batteries 2 Stand + 1 charger
the build quality of the B1 500 head is amazing. Profoto pays close attention to all the details and makes sure that the finish looks very clean, with round corners all along. The head is pretty long compared to other heads, but that’s because Profoto heads have the flexible mount ring system, where you can actually move a light modifier such a softbox in and out depending on your needs. My Elinchrom heads do not allow for this and operate only under one wide angle. Profoto allows up to 8 steps of this head “zoom”, 5 of which are marked on the head (4, 5, 6, 7, 8). I love this feature, because you do not have to worry about rotating anything into position and wondering if it is locked or not – the ring lock system is very reliable and easy to use in comparison. Once locked, the modifier stays in place securely.
Here are the most important specifications of the Profoto B1 head:
Maximum Watt/Seconds: 500W/s +/- 1/20 Stop
Guide Number: 291 @ 6.56′ (2.0 m), 100 ISO with Magnum reflector
Flash Variability: In 1/10 or 1 Stop increments 9.0 Stops: 2.0-10 power level (1/256-1/1), 2.0-500W/s
Recycle Time: Minimum/Maximum: 0.1-1.9 sec., Quick Burst Mode: 20 frames per sec.
Flash Duration: Normal mode (t0.5): 1/11,000 – 1/1,000 sec. min/max power
Freeze mode (0.05): 1/19,000 – 1/1,000 sec. min/max power
Color Temperature: 5,600K
Beam Angle: 77 Degrees with built-in reflector and opal protective glass
Modeling Light: 20W LED (70W tungsten equivalent), Replaceable by service tech.
Modeling Light Control: Off / Proportional / Free (full) 5.0-100%
Wireless Remote: Yes, via optional Air Remote TTL-C/N, Air remote, Air USB (Profoto Studio)
Wireless range: Up to 1,000′ (300 m) for normal triggering, Up to 330′ (100 m) for TTL with optional Air Remote TTL-C
Frequency Band: 2.4 GHz
Triggering: Air radio slaves, optical (IR), sync cord
Operating Voltage: 100-240VAC, 50/60Hz, Self-sensing, 14.8VDC/3Ah via included, rechargeable battery
Auto Power Off: Yes, after 60 minutes of disuse, Sleep mode after 30 minutes of disuse
Battery Type: Lithium-ion, 220 Full power flashes
Battery life: 300 charge cycles (to 80% left)
Flash Ready Indicator: Beep tone, ready right, modeling light dimming
Battery Charge Time: 2.0 Hours with included 2.8V multi-voltage charger, 1.0 Hour with optional 4.5V quick charger
Battery Charge Display: Green LED indicators
User Replaceable Flashtube: No, via authorized service tech.
Voltage Stabilization: Yes
Circuit Protection: Adaptive thermal control
Fan Cooled: Yes
Auto Dump: Yes
Operating Temperature: 14 to +122°F (-10 to +50°C)
Storage: 4 to +140°F (-20 to +60°C)
Dimensions (length x diameter): Body only: 12.2 x 5.12 (310 x 130 mm); With 5/8″ (16 mm) stand adapter: 12.2 x 6.69″ (310 x 170 mm)
Weight: 6.61 lb (3.0 kg) including battery