Profoto B1X 500 AirTTL 1-Light To-Go Kit


  • Mfr# 901028
  • 1 x B1X 500 AirTTL OCF Monolight
  • 1 x Li-Ion Battery Mk II for B1 and B1X
  • 1 x Battery Charger 2.8A
  • 1 x Bag XS
  • 80% Brighter LED Modeling Light
  • Better Battery: 325 Full Power Flashes
  • Full 9-Stop High-Speed Sync Power Range
  • Flash Duration: 1/19,000 – 1/1000 Sec
  • 0.1 – 1.9 Sec Recycling
  • LED Modeling Lamp (130W Equivalent)

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Profoto continues to impress and surprise us, this time with an enhanced version of the B1 battery-powered monolight, the B1X, introduced with the B1X 500 AirTTL 1-Light To-Go Kit. All of the familiar professional and convenience features we’ve come to expect from Profoto are onboard. The B1X has the same dense, durable polymer housing, integrated 77-degree reflector, built-in receiver compatible with Air Remote TTL remotes and intuitive highly visible controls and display.

AirTTL remotes are made for Nikon, Canon, Sony, and Olympus cameras. Busy photographers can literally set up their lights, slip the optional Air Remote TTL-C, TTL-N, TTL-S, or TTL-O remote onto their camera’s hot shoe and point-and-shoot without taking a reading and testing. Composition, posing, etc. is of course up to the photographer, but time after time, the B1X will give you a first shot exposure that’s a keeper.

The (separately purchased) remote is the key to this convenience and control. Operating on 2.4 GHz band width, the remote, really a controller, has 8 frequency channels and with 3 groups per channel and a range of up to 330′ for TTL triggering and 1000′ for normal non-TTL triggering. Each channel has power ratio capability of +/- 2 stops. If you prefer to use manual you have +/- 9 stops power variation. You’ve also got modeling light, unit shut-down, and first or rear curtain control. The AirTTL remotes have mini-USB connectors for firmware updates directly from Profoto’s website. The B1X’s core performance features are equally impressive. The B1X recycles in 0.1 to 1.9 seconds but can deliver up to 20 flashes per second in Quick Burst Mode which engages at lower power settings. Flash duration in Normal Mode is a very fast 1/1000 sec but there’s also a Freeze Mode that delivers flash durations as short as 1/19,000 sec for capturing liquid sprays or splashes and other creative effects.

The B1X is also capable of High Speed Sync. HSS is the technical term for syncing flash with shutter speeds shorter than the so-called x-sync, typically 1/250 of a second. It’s a useful tool for controlling ambient light and for freezing action. Profoto uses a patent-pending technology that emits an extremely fast series of flash pulses. A simple button-press activates HSS Mode allowing you to shoot at shutter speeds as fast as 1/8000 of a second. The B1X 500 AirTTL employs an improved, high-capacity, exchangeable lithium-ion battery that gets up to 325 flashes on a 2.5-hour charge with the included 2.8A charger or a 1.5-hour charge with an optional 4.5A quick charger. The battery has fuel gauge-type LEDs that make monitoring remaining power easy. The B1X’s modeling light is LED to put less strain on the battery. It provides the equivalent output of a 130W halogen bulb and will run for 120 minutes on a full charge.

Finally, B1X’s back panel features a large, bright LCD screen that informs the user of the flash’s power level, radio channel and group, sync choice, modeling light mode and recycle alert. There’s also a large battery gauge that literally can be read from 20′ away.

The B1X 500 TTL comes with a protective cap, 2.8A charger, and a soft case.

Full TTL with Canon, Nikon, Sony, and Olympus Cameras
Optional Air Remote
Firmware Updates
High Speed Sync as Fast as 1/8000 Sec
Exceptionally Short Flash Duration
Freeze Mode
Quick Burst Mode
Lithium-ion Battery Powered
LED Modeling Lamp
Control Panel
Power Variable over 9 Stops
Full Light Shaper System Compatibility
Package Weight 11.9 lbs
Package Dimensions 17.4 x 10.0 x 7.0 in
Maximum Watt/Seconds

500Ws +/- 1/20 Stop

Guide Number

291 @6.56′ (2.0 m), 100 ISO with Magnum reflector


LCD Indicators: Power in 1/10 stop increments Battery charge level Modeling light status Recycle alert (beep, dim, beep and dim, silent) Sync (slave, radio channel, group) Back Panel Control: Modeling light button Sync button Test, On/Off button Power dial

Flash Variability

1/10 or 1-stop increments 9.0 stops 2.0 – 10 power level (1/256-1/1) 2.0 – 500Ws

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 – 1/1000 sec min/max power Freeze Mode (0.05): 1/19,000 – 1/1000 sec min/max power

Color Temperature

5600K Normal Mode: +/- 150K over entire power range, +/- 20K flash to flash Freeze Mode: +/- 800K over entire power range, +/- 50K flash to flash

Beam Angle

77 degrees with built-in reflector and opal protective glass

Modeling Light

2500 lumens, 24 W LED (130 W 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/S/O, 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

Frequency Band

2.4 GHz


Air radio slaves, optical (IR), sync cord

Max Sync Speed

Up to 1/250 sec in normal mode Up to 1/8000 sec in high speed mode

Operating Voltage

100-240 VAC, 50/60 Hz, self-sensing 14.8 VDC / 3 Ah via included, rechargeable battery

Auto Power Off

Yes, after 60 minutes of disuse Sleep mode after 30 minutes of disuse

Battery Type

Lithium-ion 325 full-power flashes Battery Life: 300 charge cycles (to 80% left)

Flash Ready Indicator

Beep tone, ready right, modeling light dimming

Battery Charge Time

2.5 Hours with included 2.8 V multi-voltage charger 1.5 Hours with optional 4.5 V quick charger

Battery Charge Display

Green LED Indicators: 3 sections 100-70% 2 sections 70-40% 1 section 40-10% 1 Section blinking: 10%

User Replaceable Flashtube

No, via authorized service tech

Voltage Stabilization


Circuit Protection

Adaptive thermal control

Fan Cooled


Auto Dump


Operating Temperature

14 to +122°F (-10 to +50°C) Storage: 4 to +140°F (-20 to +60°C)


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)


6.61 lb (3.0 kg) including battery


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