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(BBC-US)   The UK will soon be getting dimmer. This is not a metaphor or wanker comment from a snarky Yank   (bbc.com) divider line
    More: Followup, Incandescent light bulb, Stephen Rouatt, fluorescent lighting, BBC, Philips lighting, chief executive of Signify UK, efficient lightbulbs, energy-efficient LED equivalents  
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425 clicks; posted to STEM » on 09 Jun 2021 at 1:16 PM (7 days ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



19 Comments     (+0 »)
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7 days ago  
Power usage in the UK (and in the US and EU and elsewhere) is down a lot per capita due to LED bulbs and energy efficient appliances and the like.
 
7 days ago  
Subby obviously hasn't seen how stupidly bright LEDs can get. Just look at the people upgrading their car headlights to from halogens to LEDs and blinding everyone on the road.
 
7 days ago  

Geographictoiletpaperfool: Power usage in the UK (and in the US and EU and elsewhere) is down a lot per capita due to LED bulbs and energy efficient appliances and the like.


Properly designed LED lamps can pump out as many photons as a halogen lamp for indoor lighting purposes while dumping less heat.

/thus begins the thread of unexciting facts.
 
7 days ago  

Geotpf: Power usage in the UK (and in the US and EU and elsewhere) is down a lot per capita due to LED bulbs and energy efficient appliances and the like.


They're really a phenomenal invention.  Worth it just for the convenience of modern headlamps or flashlights alone.  My only quibble is they keep marketing them as "they last five times as long", which is bullshiat in my own anecdotal experience.
 
7 days ago  

Geotpf: Power usage in the UK (and in the US and EU and elsewhere) is down a lot per capita due to LED bulbs and energy efficient appliances and the like.


When you have an electric heatpump, an electric clothes dryer and an electric oven, lighting is a rounding error.  I install LED bulbs as the incandescent, CFL and halogen bulbs burn out, but there's no reason to replace all the bulbs while they still work. Sunk cost vs forward cost.
 
7 days ago  

FeminineLaughingMountainMan: Geotpf: Power usage in the UK (and in the US and EU and elsewhere) is down a lot per capita due to LED bulbs and energy efficient appliances and the like.

They're really a phenomenal invention.  Worth it just for the convenience of modern headlamps or flashlights alone.  My only quibble is they keep marketing them as "they last five times as long", which is bullshiat in my own anecdotal experience.


Don't buy the cheap ones.  They're cheaply made.
 
7 days ago  

SansNeural: FeminineLaughingMountainMan: Geotpf: Power usage in the UK (and in the US and EU and elsewhere) is down a lot per capita due to LED bulbs and energy efficient appliances and the like.

They're really a phenomenal invention.  Worth it just for the convenience of modern headlamps or flashlights alone.  My only quibble is they keep marketing them as "they last five times as long", which is bullshiat in my own anecdotal experience.

Don't buy the cheap ones.  They're cheaply made.


yup. this.
 
7 days ago  
Subby doesn't sound like the sharpest bulb in the sock drawer.
 
7 days ago  
I don't care about lighting unless it has to do with my dart board. I hate shadows and I don't like light rings.
 
7 days ago  
Scotland and Northern Ireland will be leaving and joining the EU.  That will make the UK dimmer.
 
6 days ago  

SansPants: FeminineLaughingMountainMan: Geotpf: Power usage in the UK (and in the US and EU and elsewhere) is down a lot per capita due to LED bulbs and energy efficient appliances and the like.

They're really a phenomenal invention.  Worth it just for the convenience of modern headlamps or flashlights alone.  My only quibble is they keep marketing them as "they last five times as long", which is bullshiat in my own anecdotal experience.

Don't buy the cheap ones.  They're cheaply made.


OJFC.  It's a light bulb, I'm not doing an hour of internet research for a $10.00 purchase.
 
6 days ago  

natazha: Geotpf: Power usage in the UK (and in the US and EU and elsewhere) is down a lot per capita due to LED bulbs and energy efficient appliances and the like.

When you have an electric heatpump, an electric clothes dryer and an electric oven, lighting is a rounding error.  I install LED bulbs as the incandescent, CFL and halogen bulbs burn out, but there's no reason to replace all the bulbs while they still work. Sunk cost vs forward cost.


lighting is THE major heat load in buldings, every reduction of 1 watt of lighting saves 3.4 BTU in required cooling

yes, you also lose that heat gain in the winter, but in large buildings, you only heat the perimeter to about 15 foot in, the rest of the building usually still requires cooling
 
6 days ago  
The UK has been getting dimmer for quite some time.  Take Brexit, for example . . .
 
6 days ago  
The world has been getting both brighter and blue-er because of widespread adoption of white LED lighting, and it's happening in the developing world a lot faster than the rich countries.

I was in Nepal in 2011, and you'd see literal truckloads of cheap Chinese LED lamps for sale in markets. This was a pretty spiffy thing in a country where most kids couldn't read their homework after dark because the grid power was so flaky.
 
6 days ago  

petec: natazha: Geotpf: Power usage in the UK (and in the US and EU and elsewhere) is down a lot per capita due to LED bulbs and energy efficient appliances and the like.

When you have an electric heatpump, an electric clothes dryer and an electric oven, lighting is a rounding error.  I install LED bulbs as the incandescent, CFL and halogen bulbs burn out, but there's no reason to replace all the bulbs while they still work. Sunk cost vs forward cost.

lighting is THE major heat load in buldings, every reduction of 1 watt of lighting saves 3.4 BTU in required cooling

yes, you also lose that heat gain in the winter, but in large buildings, you only heat the perimeter to about 15 foot in, the rest of the building usually still requires cooling


Especially once you figure in the 100+ W of a fat person just sitting at their desk.
 
6 days ago  
Halogens lights get stupidly hot. If your bulb is emitting that much heat instead of light, it's patently inefficient at generating said light.

Frankly I won't miss them, and I don't even live in there UK.
 
6 days ago  

maxheck: The world has been getting both brighter and blue-er because of widespread adoption of white LED lighting, and it's happening in the developing world a lot faster than the rich countries.

I was in Nepal in 2011, and you'd see literal truckloads of cheap Chinese LED lamps for sale in markets. This was a pretty spiffy thing in a country where most kids couldn't read their homework after dark because the grid power was so flaky.


There was an under read/under commented green light a couple days ago how cheap solar panels were allowing more powered irrigation in marginal farm lands in Africa, vastly increasing land productivity.
 
6 days ago  
I found a bunch of iron core LED light globes.  Iron core is the old heavy style power brick technology that went away before decent white LED tech became reasonable.
 
6 days ago  

FLMountainMan: My only quibble is they keep marketing them as "they last five times as long", which is bullshiat in my own anecdotal experience.


Often the LEDs have a very long life but the AC-DC converters fail rapidly and when they do you're not throwing away a piece of metal (recycleable) and glass (recycleable) but a complex circuit that requires specialist deconstruction to recycle and much of which cannot be recycled.

lilbjorn: The UK has been getting dimmer for quite some time. Take Brexit, for example . . .


One advantage of Brexit is that it allows the UK to rethink EU law on environmental policy such as this one that is well meaning but often didn't consider full product lifecycle in declaring LED to be better than halogen.

Except we didn't and we're going to keep following those rules so well done us I suppose.

petec: lighting is THE major heat load in buldings, every reduction of 1 watt of lighting saves 3.4 BTU in required cooling


This is the UK - we need to heat our homes much more than cool them. Heating a house with electricity would be expensive versus gas, but some homes don't have gas heating anyway and the government is planning to ban that too in a few years (for new installations) so we'll be reducing the heat output from our electric lights and increasing it by the same amount from our electric heaters.

I use a large amount of LED bulbs and some halogens in my house and I use each where it is appropriate to do so, I think most people do the same.
 
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