3 ms·
> LEDs are now being used for lighting in situations where there used to be no lighting at all While LED lights have certainly allowed for new applications, th
by dpark 10y ago
> LEDs are now being used for lighting in situations where there used to be no lighting at all
While LED lights have certainly allowed for new applications, that article is nearly 10 years old and the future predicted has not come to pass. There has been no wave of LED-encrusted buildings. The roads don't glow. My bookshelves and whatnot don't either.
If LEDs deliver a 10x improvement in energy use, we'll have to use 10x as much light to offset the energy gains. How likely is that?
- samstave 10y agoHave you been to Hong Kong or Beijing? Lots of led encrusted buildings.
- st3v3r 10y agoHow many of those buildings had regular lights on them before?
- samstave 10y agoConsidering they are all relatively new construction, I doubt that any previous structures had them - this is a new, and awesome, phenomenon... I freaking love what Asia is doing with their urban environments... I just wish that the US developers would take note. We are building the tallest building in SF ("salesforce" tower) and its a mundane peice of shit building. Literally zero aesthetic innovation.
- bdamm 10y agoTrue, but they're mostly decorative spots that hardly consume any light at all. Especially compared to old school flood lights that cast wide glows on sides of buildings.
- phillmv 10y ago>There has been no wave of LED-encrusted buildings. Lol. Give them time. Here's two examples off the top of my head, in my city: http://urbantoronto.ca/news/2015/07/aura-illuminates-downtown-night-lights-tested http://urbantoronto.ca/news/2015/07/aura-illuminates-downtow... http://canderelresidential.com/files/styles/building/public/developments/Ryan%20Fung_Designstor_RooftopExterior%202%20Lo%20Res.jpg http://canderelresidential.com/files/styles/building/public/...
- goda90 10y agoI wish the trend was to reduce outdoor lights in cities instead of increasing them because it looks cool.
- Obi_Juan_Kenobi 10y ago> My bookshelves and whatnot don't either. Speak for yourself :) I agree, though; I use a lot more lights around the house, but they're small and very directed for their purpose. Many of them are controlled by cheap, ubiquitous PIR modules so that they're only on when needed, with absurdly low quiescent current. I use less light overall because it's only where I need it to be, and I find this to be much nicer on my eyes, and generally pleasing for the evening. The added efficiency is just a bonus on top of all that. Many are undervolted, as well, so should last a very long time; the main concern is the lifespan and quality of the power supplies.
- grogenaut 10y agoGot any recommendations for the LEDs, power sources, or PIRs?
- deleted 10y ago[deleted]
- thinkling 10y ago> The roads don't glow. There are those solar roadway people who are hoping to fix that. (I'm not optimistic, though. :) )