I have had a pair of these lights for two years now, and they have been used for everything from product shots, splashes of light in the background of a wide shot, faking a flame effect in an advert for a patio heater, key light for skin tones, hair light for portraits, interior light for car shots, you name it, these lights have done it! The sidus app is very good, I have captured organic flickering from candles and flames to use in the app, plus TV effects, sunlight through palm trees and loads more.