The good old Light Bulb making a come back

[Flanders]

Just found this So it looks the we will have to start changing all them LED lamps we have been fitting back to the good old light bulb
Old-fashioned light bulbs could be set for comeback after 'light recycling' breakthrough | Science | News | The Independent

 

[Spoon]

Read this last week in the BBC new site. I wonder how much they are going to cost?

 

[Flanders]

I guess like everything They will be £1000 each to start will and come down in price I'm finding some LED stuff is nearly the same price now as non LED, I suppose it all depends on how much the technology cost to create them I it would be funny in 5 years time if we are ripping out LED fittings to fit these.

 

[NDG Elecs]

Just found this So it looks the we will have to start changing all them LED lamps we have been fitting back to the good old light bulb
Old-fashioned light bulbs could be set for comeback after 'light recycling' breakthrough | Science | News | The Independent

Beat you to it Flanders!! :teeth_smile:

http://www.electriciansforums.co.uk...ncandescent-lamps-might-making-come-back.html

LEDs are so so old fashioned....!

 

[telectrix]

but these ecologists and greenies fail to see the wood for the trees. OK, incandescent lamps produce heat as well as light, but not as inefficient as made out. basic law of physics is that energy cannot be created or destroyed. so..assume a 100 watt bulb produces 20watts equivalent of light energy and 80watts of heat. this 80watts helps to warm the room, thus reducing the energy required from the heating system, so then the gas central heating output is reduced, albiet by a small factor, comments please.

 

[NDG Elecs]

but these ecologists and greenies fail to see the wood for the trees. OK, incandescent lamps produce heat as well as light, but not as inefficient as made out. basic law of physics is that energy cannot be created or destroyed. so..assume a 100 watt bulb produces 20watts equivalent of light energy and 80watts of heat. this 80watts helps to warm the room, thus reducing the energy required from the heating system, so then the gas central heating output is reduced, albiet by a small factor, comments please.

See what you are saying Tel, but the cost of the electrical heating is more expensive than what it would be to use gas central heating instead. And in summer the heat generated is 'waste' heat, as the GCH may not be on at all.

And the laws of physics are incorrect, you only need to see Rointes claims to see that!

 

[telectrix]

cobblers.our living room is heated solely by the chandelier with 50 60watt halogens. the radiators are just for drying washing.

 

[NDG Elecs]

Dimmable naturally...

 

[telectrix]

Dimmable naturally...

of course.my lady's knickers chucked over give a 40% reduction in light output.

 

[Blademan_98]

Well, now we have metal CU's I personally am going back to candles.......

 

[sean_ork]

but these ecologists and greenies fail to see the wood for the trees. OK, incandescent lamps produce heat as well as light, but not as inefficient as made out. basic law of physics is that energy cannot be created or destroyed. so..assume a 100 watt bulb produces 20watts equivalent of light energy and 80watts of heat. this 80watts helps to warm the room, thus reducing the energy required from the heating system, so then the gas central heating output is reduced, albiet by a small factor, comments please.

The glaringly obvious fault in that logic is that the heat produced isnt always required, its just a wasteful by-product

But you knew that ....

 

[newtothis]

got 7 5W leds in my hall - cos they're so cheap to run I leave them on 10 times as long as the 100w bulb they replaced.
Truth !

 

[sean_ork]

got 7 5W leds in my hall - cos they're so cheap to run I leave them on 10 times as long as the 100w bulb they replaced.
Truth !

You hall must be freezing cold :nopity:

 

[NDG Elecs]

got 7 5W leds in my hall - cos they're so cheap to run I leave them on 10 times as long as the 100w bulb they replaced.
Truth !

Yeah I tend to do that also mate, haha!

 

[newtothis]

NO mate I keep the heating at 21 degrees c all the time if it gets too hot, I just wear a tee shirt and shorts.