Reflective is ideal for situations where one-way daytime privacy is required. During daylight hours, the film will give the external side of your glass a mirrored, reflective appearance, preventing vision through the glass.
The film works on the balance of light, with the side of the film that is subject to the brighter light providing a mirrored effect and preventing vision through. Vision will still be possible from the other side of the glass, with a good level of natural daylight allowed to pass through; an application of high reflective silver will not make your room feel dark.