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Is that 14 v AC or DC?? If DC you can likely use 12v strip 3528 leds directly from the power supply without worry. These strips have 3 leds every 2" and are self adhesive, and can be cut to length in multiples of 2" (50mm actually). Very easy to use.

If the supply is Ac I would use grj's constant current modules which rectify the ac and limit the current to the strip regardless of the supply voltage. One module will handle up to about 30 leds, or 20" of strip.

Rod

 

Thanks guys, I'm the friend! Never thought of asking here! Thanks Bro! Richie C I looked those up and they should work, I want to install in Korber buildings and some of the older Woodland Scenic structures that don't have lights! From your experience, what do you think? Would one strip of 10 be enough in a building? I did not see an offer for strips with less lights than 10. I want to hook them to a terminal block and from there to the 14 volt terminal on my Z 4000. Thanks guys love this forum!

play trains posted:

Thanks guys, I'm the friend! Never thought of asking here! Thanks Bro! Richie C I looked those up and they should work, I want to install in Korber buildings and some of the older Woodland Scenic structures that don't have lights! From your experience, what do you think? Would one strip of 10 be enough in a building? I did not see an offer for strips with less lights than 10. I want to hook them to a terminal block and from there to the 14 volt terminal on my Z 4000. Thanks guys love this forum!

These are some that come with only three (3) LED's per strip.

https://www.ebay.com/itm/DD01W...047675.c100752.m1982

Please note that they are both AC and DC compatible.

My experience is that they are bright - of course, it depends on whether you get bright white, warm white, yellow, etc., but the bright whites are definitely bright. I used a strip of 10 under a bridge to light up a hobo village and had to change the hook-up from the 14v accessory port on my Z-4000 to the 10v port because it was just too bright.

For medium size buildings, I generally use the three light strip and for smaller buildings, like a yard office, I use one of the single lights or two of them wired together. I think you're going to have to experiment to see which are the right ones for your structures, but, unless you have a huge building, I'd probably buy a package of the three strips and a package of the individual ones and see how that works out. If one three light strip is not enough, you can always wire two of them together to get six (6) lights and with the Z-4K you can also vary the voltage input. 

These are the single ones - https://www.ebay.com/itm/DD00W...047675.c100752.m1982

 

Last edited by Richie C.

You can also purchase strip leds in rolls 5 meters long, or 16.4 feet. Then you just cut off strips as long as you want, in multiples of 2". So you can cut a strip 8", 10", 12" long, whatever you need for the particular building. Then simply solder light gauge wires to one end and go.

I have never used an AC supply for strip leds, so it is interesting to see that some folks have done this. The only issue with this is that you are using only one half of the ac sine wave, so you will have a 30 Hz flicker, which some may find objectionable. With dc you dont get this flicker. 

Rod

There are also variations of strip SMD (surface mount) LEDs that affect brightness and power consumption. The numbers for SMD LEDs indicate the surface area of the luminous material. So the 3528 is 3.5mm x 2.8mm in dimension while the 5050 is 5.0mm x 5.0mm. There are other larger dimensions as well. The larger they get the more power is required to drive them.

The E Bay listing referenced here looks like a simple 3 light section from a strip roll with two wires soldered on.

LEDs require DC to work properly.  They will work on AC for a while but will fail.

Use our forum sponsor "Evan Designs" or buy an adjustable converter on the same site referenced here and convert your AC to DC.  The strip LEDs usually work at 12 V DC.  The converters being adjustable can be tuned simply to any voltage you want in DC.  You can choose less than 12 Volts to lower the intensity of the lighting if you choose to.

 

Last edited by Soo Line

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