I have found there seems to be 2 colours of low energy bulb. One gives a stark harsh greyish blue light and the other is a warmer light. I am happy with that warmer light and it looks OK with my Tiffany lights. But I think they are over optimistic when they say that a certain wattage low energy bulb is the equivalent of a certain wattage traditional bulb, because they clearly are not as bright as claimed.