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Christmas L.E.D. lights, will they work???

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  • Member since
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  • From: Potomac Yard
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Posted by NittanyLion on Monday, December 31, 2012 4:33 PM

BroadwayLion

The box was labeled "White" because the cord was white instead of green.

Nope, green cord.

The red, green, yellows, and maybe blues will be useful somewhere.  Not sure what I'll ever use a purple LED for.  Unless I crack it open and some other color falls out.

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Posted by rrinker on Monday, December 31, 2012 11:10 AM

 That's exactly it. Color LEDs like red, green, and blue are easy, it just depends on the chemistry. White LEDs are almost all actually a UV emitting LED with phosphors to produce the white glow, more complicated and expensive to make.

                   --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

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Posted by BroadwayLion on Monday, December 31, 2012 9:46 AM

Um, yes, I knew that. I think I mentioned it. Colored plastic thingies have colored LEDs under them.

I was surprised, the same as you when I first found them (although I do have a use for blue LEDs).

But you must stop and think about this for a second and it will become obvious.

All Electronics sells colored LEDs, for as little as 10c each, where as the white ones are 90c each. If it is the chemistry that goes into making white LEDs that much more costly, then it only stands to reason that the makers of these sets will use the least expensive LEDs they can in them.

The box was labeled "White" because the cord was white instead of green.

ROAR

The Route of the Broadway Lion The Largest Subway Layout in North Dakota.

Here there be cats.                                LIONS with CAMERAS

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Posted by NittanyLion on Sunday, December 30, 2012 9:27 PM

Just a heads up so no one else gets surprised like I did:

I picked up a box at Target that was labeled as "white" (as opposed to warm white) with color lenses.  After pulling off a few of the lenses, I discovered that the bulbs are colored!  Disappointing because I wanted the white bulbs.  I'd assumed that the lenses were the only thing colored, but apparently not.  Kinda makes me curious why the box was labeled white though...

Hope I can find a box somewhere.  Target was cleaned out tonight!

Bis
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Posted by Bis on Sunday, December 16, 2012 2:13 PM

Thanks Lion

 I pushed,pulled,proded and everything else. I finally had to get the Dremel out and slit green holder to remove the clear lense. I just thought that it might not be as harsh a light with the lense left on.

 I have yet to put any in buildings. I am still building the structures.

 Thanks

Ken

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Posted by BroadwayLion on Sunday, December 16, 2012 9:20 AM

I always remove them.

The lamps come out by pulling straight out from the socket. Once you have the familiar looking Christmas bulb in your hand,  remove the plastic do dad (if there is one) by twisting it. Bend the two contact wires back away from the lamp. The LED should pull straight out without difficulty.

LION keeps a jeweler's screwdriver at hand for bending the wires straingt, it saves wear and tear on the finger nails.

ROAR

The Route of the Broadway Lion The Largest Subway Layout in North Dakota.

Here there be cats.                                LIONS with CAMERAS

Bis
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Posted by Bis on Sunday, December 16, 2012 5:57 AM

Do you folks leave the led's in the plastic holders and lenses that they come in or do you remove them?

If you remove them, is there an easy way? I have had to use a Dremel tool to cut the holder on the few I have played with.

Thanks

Ken

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Posted by PennCentral99 on Sunday, December 16, 2012 12:17 AM

dragenrider

Does any model supplier sell the LED's with the resister already in place and rated for correct current?  That would speed me up and cut down on many beginner mistakes. 

Yeah, try Evan Designs     http://www.modeltrainsoftware.com/ledlights1.html

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Posted by dragenrider on Sunday, December 16, 2012 12:12 AM

Does any model supplier sell the LED's with the resister already in place and rated for correct current?  That would speed me up and cut down on many beginner mistakes. 

The Cedar Branch & Western--The Hillbilly Line!

Bis
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Posted by Bis on Tuesday, December 11, 2012 3:51 PM

Looks GOOD.

 

 Ken

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Posted by river_eagle on Tuesday, December 11, 2012 3:46 AM

just if you were wondering, "daylight" view

fun with LEDs

UV LED and pen

When in doubt, rule #1 applies  Central Missouri Railroad Association cmrraclub.com
Bis
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Posted by Bis on Sunday, December 9, 2012 12:49 PM

I think we will pass on the incandescents, sounds like a real pain

I think I still have a few of the old plasticville buildings :)

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Posted by richg1998 on Sunday, December 9, 2012 11:37 AM

If you want to work at what I call the component level, read and store the below links in Favorites.

http://www.trainelectronics.com/Meter_Workshop/index.htm

http://www.trainelectronics.com/Meter_HF/index.htm

I have three of the Harbor Freight meters.

All the LED's I have ever bought are 20 ma max so I assume any from sets are the same. I use a 1 k potentiometer and 12 vdc to check them out. Start at 1k on the pot. Big if, if one blows out with the pot at 1k, not a big deal as there are more in the set but that has never happened.

I also have 2.5 k and 5 k pots but have never needed them.

Rich

If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.

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Posted by BroadwayLion on Sunday, December 9, 2012 10:59 AM

Bis

Thanks everyone, after I get done with the "honey do's" I am going to go solder some resistors the some leds.

 I am almost affraid to ask but what do you do to use the incandescent Christmas lights?

I DO NOT USE THEM. The are very very hard to solder to the leads, and besides they have a built in shunt to short them out in the event of filament failure so that the rest of the lights would stay on. As soon as anything troubles it you will have a dead short in your circuit, and I would defy toy to find it!

Now once upon a time, when I was just a young cub, I did do just that, but there were the old 12 volt conical shaped lamps (The kind that disappeared once the C7s came out.) They were wired in series of eight lamps and so could be plugged into 120 volts. If one went out, they all went out, but you only had eight to test and not 300! In any event the LIONLING use them sockets and all with 12 volts and they were just fine for lighting up the old plasticville houses that one used in those days. Such lamps are almost certainly no longer available.

Do not even dream of using those things, for they run on anything from 2 volts to 6 volts and you do not know which by looking at them.

ROAR

The Route of the Broadway Lion The Largest Subway Layout in North Dakota.

Here there be cats.                                LIONS with CAMERAS

Bis
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Posted by Bis on Sunday, December 9, 2012 9:26 AM

Thanks everyone, after I get done with the "honey do's" I am going to go solder some resistors the some leds.

 I am almost affraid to ask but what do you do to use the incandescent Christmas lights?

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Posted by GGOOLER on Saturday, December 8, 2012 11:28 PM

this looks like a good place for this info. i use this to figure my circuits out.

works nicly when working on r/c lighting for my rigs and on the layout.

http://led.linear1.org/led.wiz

later

g

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Posted by PennCentral99 on Saturday, December 8, 2012 10:01 PM

rrinker

Plenty of light in those stars, for sure. How warm does it get under there with those on? Depending on layout location, the extra heat of incandescent vs LED or flourescent may or may not be an issue.

              --Randy

 

I think the iPhone makes them look brighter than they actually are.  They don't get hot/warm at all.  Some nights they're on for hours and you can still touch/rest your hand on them with very little to no heat.  I don't know if you can tell, but I didn't use plywood on the benchwork, just caulked the 2" foam board on the 1" x 3"'s. The backs of the lights are taped directly to the foam board and it's not melting (or even smell like it's melting).

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Posted by Mark R. on Saturday, December 8, 2012 10:00 PM

southeastroads

Ken

The + side should be the same as the + probe side, but the resistor goes on the negative or anode led lead.  The negative side of the led has a flat spot on the outside and a "flag" end the inside of the led.

Ray

Polarity does matter, but which leg the resistor goes on doesn't.

For future reference, the negative side is the cathode, the positive side is the anode.

Mark.

¡ uʍop ǝpısdn sı ǝɹnʇɐuƃıs ʎɯ 'dlǝɥ

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Posted by southeastroads on Saturday, December 8, 2012 9:02 PM

Ken

The + side should be the same as the + probe side, but the resistor goes on the negative or anode led lead.  The negative side of the led has a flat spot on the outside and a "flag" end the inside of the led.

Ray

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Posted by rrinker on Saturday, December 8, 2012 6:58 PM

 I dunno if it's a shortage, or just that the warm whites always go first - since they look more like incandescent ones. I've noticed that in the after season sales when they are selling them for super low prices, it's always the bluish white ones they have, never the warm white.

                --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

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Posted by Alantrains on Saturday, December 8, 2012 6:34 PM

It's written on the box Bis. There seems to be a shortage of the warm white ones this year though.

Alan Jones in Sunny Queensland (Oz)

 

Bis
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Posted by Bis on Saturday, December 8, 2012 6:05 PM

VERY IMPRESSIVE.  How do you determine cool white from warm white when dealing with Christmas lights?

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Posted by river_eagle on Saturday, December 8, 2012 3:45 PM

street lights are bulbs, but rest are LEDs, cool white in drugstore and furniture store, warm whites everywhere else.

When in doubt, rule #1 applies  Central Missouri Railroad Association cmrraclub.com
Bis
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  • From: E Texas
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Posted by Bis on Saturday, December 8, 2012 2:43 PM

On River Eagle's town, are those all white lights or are some of them colored? It sure looks good.

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Posted by rrinker on Saturday, December 8, 2012 11:35 AM

 Love the contrast between different businesses in river_eagle's picture. Some who've implemented flourescent lighting, some still with incandescent.

 Plenty of light in those stars, for sure. How warm does it get under there with those on? Depending on layout location, the extra heat of incandescent vs LED or flourescent may or may not be an issue. I knew there was something I meant to grab at Walmart last night, a string of LED lights, the side of my room with the sloping ceiling is somewhat in the shadows and there's not a lot of room to install say undercabinet type fixtures there, not to mention I really shouldn;t be fastenign anything that requires holes in the wall or ceiling panels.

 The price of the high power LED strips keeps coming down, I have this wild idea that by the time I have space for my 'dream' layout I'll be able to run strips of RGB LEDs with a controller so I can do everything from a blue moonlight night through sunrise, midday sun, and back to sunset, for the whole over layout area, with little heat. I may do some experimentation along these lines. One thing I did on my previous layout is use one of each type of flourescent bulb in each fixture, a warm white and a coolw hite, in an attempt to get a good color balance. As long as you didn't actually look up at the fixture, it seemed to give a nice effect. I'd like to try the same with LEDs, a string of each in parallel and see what it looks like.

              --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

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Posted by PennCentral99 on Saturday, December 8, 2012 9:47 AM

mobilman44

Hi,

I was just thinking of buying a string but to use them as a unit rather than individually.   I thought about stringing them over my lower level staging & storage area, and having them on only when needed.

Anyone else use them like this?

Since I am in the process of rebuilding the layout and I have seen others use the new LED rope lights, I had given thought to putting them in the helix.   The new layout is 2 level with staging on the bottom.  Well, once the upper level was installed, the lower staging quickly turned into night, so I needed some lighting (just as you have indicated).  Here is staging without any lighting.....

While getting out the xmas decorations, I came across 2 boxes of these (thery're not LED, but they'll work).......

Since the wife didn't want them anymore (upgrading to LED), they quickly became lighting for staging.... 

I took the "stars" and used double sided foam tape.....

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Posted by BroadwayLion on Saturday, December 8, 2012 9:14 AM

LION would use light rope instead. Easier to handle, comes with brackets. If you cannot screw the bracket, you can tape them with double sided foam tape.

ROAR

The Route of the Broadway Lion The Largest Subway Layout in North Dakota.

Here there be cats.                                LIONS with CAMERAS

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  • From: Southeast Texas
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Posted by mobilman44 on Saturday, December 8, 2012 6:35 AM

Hi,

I was just thinking of buying a string but to use them as a unit rather than individually.   I thought about stringing them over my lower level staging & storage area, and having them on only when needed.

Anyone else use them like this?

ENJOY  !

 

Mobilman44

 

Living in southeast Texas, formerly modeling the "postwar" Santa Fe and Illinois Central 

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Posted by river_eagle on Friday, December 7, 2012 11:51 PM

cool vs warm white LEDs

When in doubt, rule #1 applies  Central Missouri Railroad Association cmrraclub.com

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