before, under the spots, it used to be uncomfortably hot all the time.
That's the ironic thing.. 8 months of the year we are pumping heat into our houses anyway, so is the heat from a light bulb truly waste heat or does it offset the energy used by the central heating?
It's actually targeted to the rooms that are currently in use, too, unlike central heating.
The fact is that whilst it's common sense to use low energy bulbs in rooms that are in use for long periods of time, they are unfit for purpose in others where light is required on demand for short periods of time. I reckon there would need to be a serious case of Gandhi's revenge before the light in our downstairs loo (60w incandescent) used a significant amount of energy, yet when it's needed, it's needed now
. There's not normally the luxury of being able to warm up a CFL in advance.
Ditto our kitchen. Used to have 8 50w GU10s. They were switched on on demand. OK, used a lot of energy when we were cooking in there for a few hours, but when popping in there for a beer or some munchies, they were ideal. Instant light. They have now been changed for 9w GU10 CFLs, which get left on all evening because they take relatively little power but take an age to reach full brightness.
Why we can't be trusted to make our own minds up regarding what bulb suits what application I don't know. I could waste a lot more energy by going out and buying a V12, and nobody has banned them yet.. or do I speak too soon?