Description
The Profoto B1 500 AirTTL Twin Kit is a battery-powered 2-light location kit — two off-camera flash heads, batteries, a 4.5A fast charger, car charger and a custom backpack — with wireless triggering up to 300 metres via an Air Remote TTL-C/TTL-N, Air Remote or Air Sync.
Power and Speed
Each head recycles in 0.1-1.9 seconds, or fires up to 20 flashes per second in Quick Burst Mode at lower power. Normal Mode gives a 1/1,000 sec flash duration; Freeze Mode drops as low as 1/19,000 sec for stopping liquid splashes and fast motion. Power adjusts over a 9-stop range (2.0-500Ws).
TTL and Battery
Full E-TTL II (Canon) or i-TTL (Nikon) integration is available via the optional Air Remote TTL-C/TTL-N, with 8 channels, 3 groups per channel and up to 100m TTL range. The removable Lithium-ion battery gives up to 220 full-power flashes on a 2-hour charge (1 hour with the fast charger), with fuel-gauge LEDs for monitoring. A 20W LED modelling light (70W tungsten-equivalent) draws minimal power and heat.
Build
An integrated umbrella sleeve and zoom scale make the B1 compatible with Profoto’s full range of umbrellas, reflectors and softboxes, all fitting the included tailored backpack.
