Little changes make big savings when it comes to lighting. Think of this a 500w floodlight can be replaced by a 30w led floodlight now and give off the same lumens. The same goes for your lighting throughout the house six downlights with halogen lamps use 300watts of electricity just by changing those bulbs they could use 24 watts total!!!! Also the average lamp life of a halogen is around two years in comparison to led which will last anything up to ten years (dependant on usage). Why wait?