0 Members and 1 Guest are viewing this topic.
Hi,I have just heard that there is mercury in energy saving light bulbs and have heard this is very dangerous! Can anyone confirm thsi for me and explain the dangers and how I should dispose of these.Cheri
I'm starting to think that energy saving light bulbs aren't that great an idea. They must use a lot more resources to produce and there are situations where the extra heat from a normal bulb is not wasted, now they seem to be a threat to health.Actually, I'm starting to have doubts about the whole recycling thing as well. Our council has a vehicle on the road, all week, going round collecting a few tin cans. How much CO2 does this thing chuck out? It also blocks the road so cars have to waste energy stopping behind it and then have to get past it. There seem to people employed specially to pick up the few tin cans my mum puts out.My point is that we are doing as much damage doing the recycling as we are getting back from the recycling. Is it me?
But as to the hallogen (so-called) energy light saving bulbs are a waste of money as you said that they cost more to produceand take up longer to light up a room.
I very much doubt that the spectrum from a quantum device like an LED is really very 'good'. It will almost certainly consist of three (or possibly more) spectral lines or narrow bands. That is hopeless for illuminating a scene and getting the same visual response as the same scene in daylight.If you are after a nice aesthetic effect you need a fairly continuous spectrum.
I think that movement/people sensors are a better way forward for energy economy. How many rooms in our houses are lit whilst no one is in them?
it should not be considered to be the sole means by which lights could be switched on and off.
In any case, lighting is still a small consumer of energy when compared to heating.
it is often quoted that in the UK lighting accounts for 15% of domestic electricity consumption.
If you REALLY wanted to cut down on energy use you would not have central heating, which heats all rooms all the time, even though no one may enter them for a whole week- there's a lot more than 15% to be saved there.
If you REALLY wanted to cut down on energy use you would not have central heating, which heats all rooms all the time, even though no one may enter them for a whole week- there's a lot more than 15% to be saved there. High powered fan heaters and radiant heaters could 'follow you' around your home; you would be almost unaware of the way your heat was getting to you and you would save a packet.
thus the warm air, carrying moisture,
1. Quotethus the warm air, carrying moisture, Where does this moisture come from? If it comes from your breath, it implies you are in the room for a long time - so it would be warm and, low humidity.
2. I'm not expecting the room to cool down a lot; though, if it does, you are wasting even MORE energy keeping it warm with radiators working all the time. Would you include your garden shed in the central heating loop? I don't think so, so I am right in principle!
4. Many tens of pounds a year just to keep rooms warm is an expensive way of preventing condensation.
but the air itself will contain humidity even if just drawn in from outside
There is mercury in florescent light bulbs, and the common energy saving light bulbs (there are different technologies) are basically miniature fluorescent light bulbs.On the other hand, the amount of mercury in the light bulbs is far less than most people have in the fillings in their mouth.