led. rgb lighting fixture that can rotate, translate and change colour to the luminous beam, it is ideal for accent lighting. architecture draws life from its shadows and this must emerge also from its instruments of analysis and design. the models are architectural studies, ideas taking shape, matter illustrating the project; they require lighting which makes them realistic, lighting able to simulate the movement and colours of sunlight on the façades. the lighting must be able to enhance shadows, and it must be capable of being moved and manipulated so as to modify the shadows on the corners of volumes. this is the opportunity for creating a light tailored for the occasion. and so is born 'si gira', (meaning 'action', the film director's command par excellence).