RailPro > RailPro Specific Help & Discussion
LED headlights hooked up to an LM-3S.
nodcc4me:
Tom, I think one reason to go with LED’s is because their useful life is much longer than incandescents. To my eye, especially on newer diesels built after around 1965, the LED’s look more realistic. On older diesels and especially on steamers the incandescents look better.
G8B4Life:
--- Quote from: nodcc4me on January 29, 2021, 08:23:14 PM ---Tom, I think one reason to go with LED’s is because their useful life is much longer than incandescents.
--- End quote ---
And also heat, I've seen shell damage on more than one occasion due to heat from (12v) incandescent bulbs. Granted it's been quite a while since I've seen that but LED's take out that risk while gaining their other useful properties such as useful life.
As to prototypical, yes and no, depends of your era I suppose; LED's have made inroads into locomotive lighting on the prototype, first marker lights and now also headlights.
- Tim
SWA737:
Sorry Al. One more question. I have found the 1000 OHM 1/4 watt but can’t find the 750 OHM 1/2 watt. These are the two choices in this link but, why do I need 2 different ones if I’m using 3 Volt LEDs on the railpro decoder. I don’t understand two different sizes of resistors?
nodcc4me:
Actually, you don’t. If you are using all 15ma bulbs, then 1000 ohm resistors are all you need.
SWA737:
I guess my problem is I don’t know what milliamp those bulbs are on the link to the website. It does not say. I have looked over it several times. The resistors are so cheap I went ahead and bought a package of each size just to be safe. When they arrive though, I’m going to have to figure out what milliamp the LEDs are though.
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