hate them.
proper guardian reading crap they are. like Prius'
yes normal light bulbs are inefficient at lighting a room, but what they waste not producing light, they kick out as heat, so warm the room ANYWAY.
its still energy.
stick with incandescent and turn the heating down a click or two.
they are also full of all sorts of horrible stuff are they not?
mercury etc?
Fallacy alert!
The heat from incandescents is at ceiling level, not where you need it. And it's a tiny fraction of what you need to heat your room. They are the equivalent of an electric heater, which no-one uses because they are so inefficient.
Fluorescent bulbs do indeed contain tiny amounts of mecury. Coal-fired power stations also emit mercury, and the extra power generation required for incandescents causes more mercury to be emitted than the amount in your fluorescent bulbs. And of course the mercury doesn't go anywhere unless you break the bulb. Unlike a power station, which sends it straight into the atmosphere.