Well, in every office or home and anywhere we need a pretty good light. Often we have problem with not good light, and because of this our sight is going to be bad. But how we can improve the light in our offices or homes, with the same power consumption. Well, I have one idea! Maybe it's idea you can meet in some other toys. This idea is about optical fibre and light source. How you know the optical fiblre is an ideal environment for light, where light could be transported without any loses. If we uses 3 x 60 watt bulbs x 2 chandelier, for room with dimensions 6 m x 12 it is not enough. Just calculate 3 x 2 x 60 watt equals 360 watt, if we just light lamp with these watts, and connect to that bulb optical fibre with something like individual lamp at the end and bring this lamp to each workplace it would be more lighting than before.