While installing lights, using energy efficient lights is good as it helps you save
, both money and energy while emitting the same amount of light. One should also be very efficient in saving energy, if studying late at night, the ceiling lights should be switched off and instead of those table lamps should be used. CFL lights are very common nowadays; they consume very less energy and give a bright white light. Instead of using a tube light or bulb, a CFL should be used. It gives the same amount of light as they do.