Atlas O street lights are nice!

Is there a resistor factory installed on the "blue" side? 

Yes, shrink wrapped. 

Thank you for posting these cool street lights, very unique. I would call Atlas O for wiring information. On there dwarf signals, 7 volts DC.  I’m very impressed with your fantastic O scale layout, trains, everything.  Happy Railroading 

I would be wary of connecting them directly to the track even with a resistor.  White LEDs have a maximum reverse voltage of only 5 volts.  Hooking them to an accessory decoder should be no problem, just make sure you get the polarity right.

Santiago

I recommend getting this simple LED driver from Hennings Trains

https://hennings-trains.shopli...regulator-2-pcs.html

Hope they don't mind be posting this image from their website.  The boards take up to at least 19 Volts AC or DC, and convert the output to DC.  You can adjust the intensity of the LED from almost off to full brightness.  You may find that very useful.  I do not know the maxium number of LEDs it can drive, but I have these in most all my passenger cars, and each controls up to six GGD interior LEDs.   I also have numerous scattered about the layout for adjsuting street light or building light intensity

I think these were developed by forum member gunrunnerjohn.   But I could be mistaken

And yes, those Atlas Streetlights are very nice.  They come in several styles, and they are well represented on my layout 

Thanks for the replies, everyone. Turns out the resistor is good for track power. I already set up the accessory decoder port, and it works just fine. I’ll post again once I get them installed...

here I’m trying out a regular led 

@BobbyD posted:

Is there a resistor factory installed on the "blue" side? 

Should be OK then. Looking forward to the installed pictures.

Finished the install today...

At first I wasn’t sure about hoW to go about the installation...

Turns out the rod that goes through the base needs painting on the top as it serves  as a base for the light.... maybe this makes more sense in pictures... 

The first three pics are before painting the part... 

@SANTIAGOP23 posted:

Got three of these today, they look great. The LED is nice and warm.....

Quick question, can I connect these to track power (16v)? I want to use my Digitrax accessory decoder to operate them, but I don’t want to fry the LED... and Atlas doesn’t specify the ratings....

 

They’re very nice. At $31.50 each, very expensive, too.