A dimmer switch would do the same thing, sure, but having two different light sources working off one another would provide some interesting room lighting. The Butterfly Light is just a concept at this time, though quite an elegant one.
Inside your home use multiple light sources for one space: For rooms like the kitchen, bedrooms, and living spaces, multiple light sources will help you achieve a variety of functions and activities in that space. In the kitchen, under counter lights can provide great task lighting.
The key to their versatility is utter simplicity.” The geometric trend is a great option if you’re looking to give your space a modern or mid-century vibe.
You can not get a more flexible or efficient space-saving lamp design than Tall&Tiny by Alice Rosignoli. Tall&Tiny are two sticker-lamps in Vinyl foil, that answer your desire and need for home furniture while considering the problem of ever-decreasing living space.