OK, this is a stupid question. If you have a dimmer switch regulating say a 100W bulb and the dimmer switch is adjusted so that the light is dimmed, will the amount of energy consumed be less than a simple on/off switch where the 100W bulb is powered fully? Does that make sense?
Secondly, the dim/bright courtesy lights that can now be fitted outside your house which are normally dim but go into bright mode when the PIR picks up movement, do they use (a lot) less energy in dim mode than in bright mode?
Sorry they’re such stupid questions. It’s just that I’ve just fitted a light to the front of the house which comes on as soon as it gets dark. It has a 20W low energy bulb in but I feel that this may be annoying to the neighbours. I could put in a lower wattage bulb but then the light would not be as effective. I will ask the neighbour who is most likely affected by the light but she’s so friendly she’ll just say something like “Oh no, it doesn’t bother me at all. I’m just on my way to the opticians now as my eyes are feeling all gritty!”
If I fit a dim/bright light then I will have to use an incandescent lightbulb which obviously uses more energy. I don’t want to assist in consuming more of the Earth’s fossil fuels than necessary and am also thinking of my wallet so don’t want to install a different light if it is going to use stacks of energy.
Cheers
G
Secondly, the dim/bright courtesy lights that can now be fitted outside your house which are normally dim but go into bright mode when the PIR picks up movement, do they use (a lot) less energy in dim mode than in bright mode?
Sorry they’re such stupid questions. It’s just that I’ve just fitted a light to the front of the house which comes on as soon as it gets dark. It has a 20W low energy bulb in but I feel that this may be annoying to the neighbours. I could put in a lower wattage bulb but then the light would not be as effective. I will ask the neighbour who is most likely affected by the light but she’s so friendly she’ll just say something like “Oh no, it doesn’t bother me at all. I’m just on my way to the opticians now as my eyes are feeling all gritty!”
If I fit a dim/bright light then I will have to use an incandescent lightbulb which obviously uses more energy. I don’t want to assist in consuming more of the Earth’s fossil fuels than necessary and am also thinking of my wallet so don’t want to install a different light if it is going to use stacks of energy.
Cheers
G
