yeah probably
says cree, not sure: http://www.banggood.com/9006-HB4-900...-p-979941.html
"In comparison LED or florescent bulbs manage around 14 per cent efficiency"
"new bulb could reach efficiency levels of 40 per cent."
http://cleantechnica.com/2014/11/05/...50-since-2012/
Why are you laughing? To show your ignorance? 40% is damn good for that type of lighting."In comparison LED or florescent bulbs manage around 14 per cent efficiency"
"new bulb could reach efficiency levels of 40 per cent."[COLOR=#333333][FONT=arial]
Most people prefer the full spectrum lighting of incandescent vs. LED or CFL.
yep, and at 40% will have a hard competing with LEDs, and probably on price, if they ever get into production
... but 40% is damn poor compared to LED lighting, which has been and will continually be upgraded in efficiency and with a wide range of choice of color temp.
What people really like about incandescents is that they are NOT full spectrum but "warm", so skin tones look healthy.
People don't like the better LEDs which are now quite "white" and therefore look "cold" in comparison to "warm" incadescents.
Halogens are also "cold" white but who complained about them, other than short life and high cost?
I replaced shop lighting last year and the guy was trying to push led. I went with fluorescent bc of the price. Selling point of course was efficiency. Heavily used in the winter not much the rest of the year. In the north that's pretty typical of a lot of places. We are not in our house near as much as winter. What I explained to the electrician is why the do I care about efficiency when I'm heating the shop with electricity anyway?
Should maybe have bought some Chinese led as I've been very happy with the 12 volt ones I've been using.
"In comparison LED or florescent bulbs manage around 14 per cent efficiency."
... bull , es.
"instant, bright warm glow of traditional filament bulbs."
... which is NOT "full spectrum" but very towards the red end.
Take it up with the Telegraph, .
Probably want to grace Nature Nanotechnology with your moonbat takes as well.
got the whole house on phillips hue.
live a little.
http://www.nature.com/nnano/journal/....2015.309.html
Brief:
Tailoring high-temperature radiation and the resurrection of the incandescent source
Ognjen Ilic, Peter Bermel, Gang Chen, John D. Joannopoulos, Ivan Celanovic & Marin Soljačić
AffiliationsContributionsCorresponding author
Nature Nanotechnology (2016) doi:10.1038/nnano.2015.309
Received 24 July 2015 Accepted 25 November 2015 Published online 11 January 2016
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In solar cells, the mismatch between the Sun's emission spectrum and the cells’ absorption profile limits the efficiency of such devices1, while in incandescent light bulbs, most of the energy is lost as heat2. One way to avoid the waste of a large fraction of the radiation emitted from hot objects is to tailor the thermal emission spectrum according to the desired application. This strategy has been successfully applied to photonic-crystal emitters at moderate temperatures3, 4, 5, 6, 7, 8, but is exceedingly difficult for hot emitters (>1,000 K)9, 10, 11, 12, 13, 14. Here, we show that a plain incandescent tungsten filament (3,000 K) surrounded by a cold-side nanophotonic interference system optimized to reflect infrared light and transmit visible light for a wide range of angles could become a light source that reaches luminous efficiencies (∼40%) surpassing existing lighting technologies, and nearing a limit for lighting applications. We experimentally demonstrate a proof-of-principle incandescent emitter with efficiency approaching that of commercial fluorescent or light-emitting diode bulbs, but with exceptional reproduction of colours and scalable power. The ability to tailor the emission spectrum of high-temperature sources may find applications in thermophotovoltaic energy conversion15, 16, 17, 18 and lighting.
Subject terms: Optical materials and structures Photonic devices Technology
I'm running LEDs in every outlet.... Have for quite a while now.
i just told you to get phillips hue.
now thank me and move on.
only incandescents left in the house are the 34's over the vanity where the SO does her makeup.
oops
the hue system. i haven't touched a lamp in ages.
the bulbs are the same size as regular bulbs..about $14. but, they have a smaller version that allows you to use a full color spectrum..pricey about $60.
and they don't get hot, at all.
If she's accidentally right on the 40%, your science guys will probably never reach the efficiency of LEDs, .
My science guys.
"You don't need science when you have Phillips hue system"
time to retire this thread.
Hue, es. /thread
lol
Regs didn't stop the science. Bully on the science.
This might be my favorite thread in this forum, ever.
Reversal isn't a : it's a muse.
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