I'm after some downlights for our new kitchen. And have opted for mains voltage GU10's. Just wondering how many is an ideal amout for a 4.7m x 3.4m kitchen? Was thinking 8 might be sufficient but I'm not sure. I'm going to buy 4 or 5 Exergi LED bulbs and use them, and have halogens in the rest until they fail then I'll swap them for the LED ones. The LED bulbs are 4.4W and claim they're around 35-40W equivalent. So how many should I be looking to have installed?