B1 500 AirTTL

B1 500 AirTTL

Off-camera flash. With TTL. Without cords.

The Profoto B1 makes it easier than ever to take the flash off your camera. With AirTTL you set the light in a flash. With battery power and a clever design with no cables or cords, you can take the B1 with you wherever you go and put it wherever you want. Add to that the power, speed and light shaping possibilities that Profoto lights are known for, and you have an off-camera flash that makes great light easy.

The firmware of this product can be upgraded. The latest firmware version is B3

  • Patent pending AirTTL technology takes the concept of “point and shoot” to the next level.
  • Exchangeable, integrated battery provides up to 220 full-power flashes per charge.
  • Cordless design and wireless Air technology allows you to shoot without cords and restraints.
  • Quick burst capability eliminates the risk of missing that perfect shot waiting for the flash.
  • 500Ws adjustable in 1/10 f-stop increments over a 9 f-stop power range give you both -power and precise control.
  • Compatible with a wide range of Profoto Light Shaping Tools.

Product Number

  • Mike Hagen's B1 & Air Remote TTL-N Review for Visual Adventures

    This is exciting news for Nikon shooters.

  • Refoto’s Profoto B1 Review

    This is a device whose time has come.

  • Shutterbug’s Profoto B1 Review

    These lights should be high on your shopping list.

  • Pro Photo’s Profoto B1 Review

    Don’t do anything until you’ve had a good look at the B1.

  • Professional Photographer’s Profoto B1 Review

    "So, how does all of this work in the field? Superbly!"

  • Photography Life’s Profoto B1 Review

    "Without a doubt, the Profoto B1 is an amazing strobe."

  • Photography News’ Profoto B1 Review

    Using the B1 has been a great experience. Whether shooting TTL or manual, set-up and fine-tuning the lighting were really easy.

  • Turning Pro’s Profoto B1 Review

    It’s up there with the Hasselblads and Leicas of this world and as a working pro, you can’t put a price on that.

  • Photo Professional Magazine’s Profoto B1 review

    I hate the phrase ‘game changer’, but never was it more appropriate.

  • Réponses Photo’s Profoto B1 Review

    It's a versatile tool that will adapt to many types of shooting both outdoors and in the studio.

  • American Photo’s Profoto B1 Review: “Light of My Life.”

    Profoto's wireless strobe system with swappable batteries is a winner.

  • Fstoppers Profoto B1 Review

    There is no better light on the market today.

  • Kamera & Bild’s Profoto B1 Review

    Profoto B1 is a nice addition to the usually manual and corded world of studio flash photography.

  • B&H’s Profoto B1 Review

    It's so easy it feels like cheating.

  • The Phoblographer’s Profoto B1 Review

    What more could a photographer ask for than TTL communication between your camera and your monolight?


  • Pro-B1

Technical Specification

General Specifications

  • Max energy: 500Ws
  • Energy range: 9 f-stops (2-500Ws)
  • Energy control increments: 1/10 or full f-stops
  • Recycling time: 0.1-1.9 (Quick burst up to 20 flashes/second)
  • Max modeling light (W): 20W LED (Output eqvivalent to 70W Halogen)
  • Modeling light control: Off, Proportional, Free (5-100%)
  • Mode control: Freeze (shortest flash duration) or Normal (color balance) mode
  • Flash duration Normal mode (t0.5): 1/11,000s (2Ws) - 1/1,000s (500Ws)
  • Flash duration Freeze mode (t0.5): 1/19,000s (2Ws) - 1/1,000s (500Ws)
  • Energy stability Normal mode: +-1/20 f-stop flash to flash
  • Energy stability Freeze mode: +-1/20 f-stop flash to flash
  • Color stability Normal mode: +-150K over range; +-20K flash to flash
  • Color stability Freeze mode: +-800K over range; +-50K flash to flash
  • Energy control increments: 1/10 or full f-stops
  • Guide number @ 2m / 100 ISO with Magnum Reflector: 45 2/10
  • Input power supply: Exchangeble Lithium-Ion Battery 14.4V/3Ah
  • Battery capacity: Up to 220 full power flashes

Syncronization and Control

  • Sync socket(s): 1
  • Wire sync voltage: Compliant to ISO 10330 standard
  • Wire sync connector: 3.5mm Mini-Phono
  • Photocell/IR-slave and switch: Yes
  • Radio sync & control: Yes, Built in AirTTL supporting wireless sync, control and TTL. (Requires Air Remote TTL. Sold separately.)
  • Radio sync range: Up to 300m (1000ft)
  • MAC / PC control: Yes, via optional Profoto Air USB transceiver and Profoto Studio software.


  • Function display: Multifunction LCD display
  • Fan cooling: Yes, thermally controlled fan speed for low noice level.
  • Ready signaling: Yes, ready lamp, dim and/or switchable beep sound.
  • Auto dumping: Yes
  • USB interface: Yes, USB Mini port for FW upgrading
  • Quick burst: Quick burst capability of up to 20 flashes per second.


  • Diameter: 14cm (5.5")
  • Length: 31cm (12.2")
  • Height: 21cm (8.3")
  • Weight: 3kg (Including batteries) 6.6 LBS 3kg (Including batteries)

Delivered with

Delivered with

Li-Ion battery
Battery Charger 2.8A
Bag XS
English User Guide