The Nomad Power System – PDF book download! You can save electricity in apartments in various ways. Today, no apartment is complete without light bulbs that are in every room. Is it possible to save something on them? Of course, it is possible, and in order to make sure that this needs to be done, it is worth doing one counting. To do this, it is enough to take an ordinary chandelier with four standard shades and calculate how much electricity each glow lamp uses.