Like the rest of the Astra series, the Soft Bi-Color is designed for professional production, with high output and high color fidelity in its full 3200K to 5600K temperature range. Adjustments of color and brightness are stepless all the way through, and the output is flicker-free at all settings. A quiet fan at the rear cools the electronics, and it can be turned off during critical scenes, although the light output will be less while the fan is inactive.