Only Unlocked Battery can turn on DUAL lights. Compatible SONY L series NPF7xx and above are recommended.
Locked Battery will only turn on single light to prevent from battery overheat due to high power consumption
Built in Steady Voltage/Current Circuit w/ Auto Power Off function when battery voltage or current falls low during to maintain steady brightness and avoid dimming light effect and battery damage
Compatible w/ most of the professional camcorders w/ ISO standard shoe including: