LED Lights and Garage Door Opener???
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From: Hammy on 15 Apr 2010 07:56 On Thu, 15 Apr 2010 12:17:35 +0100, Martin Brown <|||newspam|||@nezumi.demon.co.uk> wrote: >> Municipalities in northern climates that converted to LED traffic >> lights are having to send work crews out to de-ice them. The LED's >> don't radiate enough heat to de-ice themselves. > >This seems unlikely. LED traffic lights are efficient but to that extent >there is still enough waste heat at least in the UK up to latitude 55N. >It must take exceptional conditions for snow to accumulate on them. > >In the US there is already a fairly simple piece of bent metal solution >for wind blown snow clogging up the sun visor cowling. > >http://www.ledsmagazine.com/news/7/1/4 > >Regards, >Martin Brown I seen it on a US news station a few months ago. They showed crews out hacking the encrusted ice off the lights during a blizzard (wet snow). As to the frequency that this occurs and under what specific weather conditions I don't know but it defiantly does happen and has. I seen this a few months ago but I seem to recall it had happened enough that the city/town the story was in was considering changing back. But who knows media likes to over dramatize.
From: PovTruffe on 15 Apr 2010 08:12 Just one thought: why did not they design traffic lights with RGB LEDs ? They should be much cheaper with a single lamp. However we are all so used to 3 lamp traffic lights...
From: Phil Hobbs on 15 Apr 2010 09:44 On 4/15/2010 7:56 AM, Hammy wrote: > On Thu, 15 Apr 2010 12:17:35 +0100, Martin Brown > <|||newspam|||@nezumi.demon.co.uk> wrote: > > >>> Municipalities in northern climates that converted to LED traffic >>> lights are having to send work crews out to de-ice them. The LED's >>> don't radiate enough heat to de-ice themselves. >> >> This seems unlikely. LED traffic lights are efficient but to that extent >> there is still enough waste heat at least in the UK up to latitude 55N. >> It must take exceptional conditions for snow to accumulate on them. >> >> In the US there is already a fairly simple piece of bent metal solution >> for wind blown snow clogging up the sun visor cowling. >> >> http://www.ledsmagazine.com/news/7/1/4 >> >> Regards, >> Martin Brown > > I seen it on a US news station a few months ago. They showed crews out > hacking the encrusted ice off the lights during a blizzard (wet snow). > As to the frequency that this occurs and under what specific weather > conditions I don't know but it defiantly does happen and has. > > I seen this a few months ago but I seem to recall it had happened > enough that the city/town the story was in was considering changing > back. > > But who knows media likes to over dramatize. > Yup. At the end of Feb we had a nor'easter here, with 2 feet of very wet snow and 50-mph winds. It broke a great many trees from the snow load, and left the branches and the wires looking like cat tails--coated with a cylindrical blanket of snow, about the same thickness all round. I'd have noticed the traffic lights except that all the power was out. ;) Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal ElectroOptical Innovations 55 Orchard Rd Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
From: GregS on 15 Apr 2010 10:03 In article <4BC71827.1020002(a)electrooptical.net>, Phil Hobbs <pcdhSpamMeSenseless(a)electrooptical.net> wrote: >On 4/15/2010 7:56 AM, Hammy wrote: >> On Thu, 15 Apr 2010 12:17:35 +0100, Martin Brown >> <|||newspam|||@nezumi.demon.co.uk> wrote: >> >> >>>> Municipalities in northern climates that converted to LED traffic >>>> lights are having to send work crews out to de-ice them. The LED's >>>> don't radiate enough heat to de-ice themselves. >>> >>> This seems unlikely. LED traffic lights are efficient but to that extent >>> there is still enough waste heat at least in the UK up to latitude 55N. >>> It must take exceptional conditions for snow to accumulate on them. >>> >>> In the US there is already a fairly simple piece of bent metal solution >>> for wind blown snow clogging up the sun visor cowling. >>> >>> http://www.ledsmagazine.com/news/7/1/4 >>> >>> Regards, >>> Martin Brown >> >> I seen it on a US news station a few months ago. They showed crews out >> hacking the encrusted ice off the lights during a blizzard (wet snow). >> As to the frequency that this occurs and under what specific weather >> conditions I don't know but it defiantly does happen and has. >> >> I seen this a few months ago but I seem to recall it had happened >> enough that the city/town the story was in was considering changing >> back. >> >> But who knows media likes to over dramatize. >> > >Yup. At the end of Feb we had a nor'easter here, with 2 feet of very >wet snow and 50-mph winds. It broke a great many trees from the snow >load, and left the branches and the wires looking like cat tails--coated >with a cylindrical blanket of snow, about the same thickness all round. > I'd have noticed the traffic lights except that all the power was >out. ; We lost power for 3 days. My in house emergency led lighting is very nice. i'm still working with it. I aquired a new portable TV also. My led lights stay on all the time is select locations, but they also add to the house lighting effects, like under cabinets, etc. greg
From: mrjb1929 on 15 Apr 2010 10:11
Wow did this thread take an interesting direction. I will say that it has provided some very interesting reading. Not only about my problem but CFL's and LED's and potential banning of Incandescents. After reading some of the responses to my problem, I suspected one LED bulb in particular. I have it lighting the interior of my garage but tied to the same low voltage landscape system. This one in particular was a 10 Watt LED bulb (not 10 watt equivilant, but an actual 10 watt bulb). It is extremely bright which is what I wanted, but suspect there is no filtering. I did recall something quirky when I first plugged it in, but I blew it off at the time. Fortunately, it was the easiest one to disconnect and test the RF issues with the remote. So far, the Opener Remotes are working normal, but we are monitoring them to see if this really is the problem. Great conversation... glad I inspired "fodder for thought". Later, Jerome --------------------------------------- Posted through http://www.Electronics-Related.com |