A compact tunable white monolight, the STORM 400x is a point-source fixture for studio and film/TV production. It puts out 27,100 lux at 3.3 feet at 5600K across a 2500-10,000K colour temperature range with green/magenta control, and holds professional colour accuracy rated CRI 95, TLCI 95, SSI 87 and CQS 94. Unlike a mains-only unit, it runs on either battery or AC power, so it can move from a powered studio to location work without a separate lighting supply. A Bowens S accessory mount opens it up to the usual range of softboxes, grids and reflectors, while control spans onboard adjustment and DMX on the wired side plus wireless Bluetooth and CRMX. A four-speed fan keeps it cool through extended use, and an IP65 rating protects it outdoors and in wet weather.