The light source is a strip of powerful white LEDs with a 5,700 K color temperature; thanks to their linear arrangement, they perfectly emulate a bright Xenon linear lamp.

The flash effect is actually enhanced since the Stormy is equipped with a parabolic reflector, like a classic strobe, and does not project the light directly forwards like other LED strobes do. The reflector collects the main beam over an aperture of 42°, leaving 130° for spatial diffusion. Its total brightness is a remarkable 80,000 lumens.