The Siros 400 S Expert 2-Light Kit from Broncolor is built around two 400Ws monolights with a 9-stop power range, 1/19,000 sec flash duration and Wi-Fi or radio signal remote control. Each of the flash heads come with an 8 light stand.
flash energy: 400 J
f-stop at 2 m (6 1/2 ft) distance, 100 ISO:
with L40 reflector: 22 5/10
with P70 reflector: 32 5/10
flash duration: t 0.1 (t 0.5):
min. energy: 1/5500 s (1/11000 s)
max. energy: 1/700 s (1/2100 s)
charging time (at 230 V): 0.02 – 0.95 s
control range of flash energy:
over 9 f-stops in 1/10 or full f-stop steps
2 – 400 J
sequences up to 50 flashes
modelling light: halogen max. 300 W / 120 V