Edit post

Edit your reply below.

Post Body
Enter your post below.
Ah well thats why your LED's didn't survive. LED's always have to have a resistor in series with them to limit the current otherwise they'll burn out instantly. <br /> <br />You only need a resistor in series with a light bulb if you're running it on a higher voltage than it's intended for (the resistor uses up some of the voltage so bulb gets less) The easyest way to decide is to just try a few different values of resistor untill you get the brightness you desire. I'm guessing that around 10 ohms would be right for a 12V light bulb on the 18V accessory terminals although you may need less. <br /> <br />A 1000ohm resistor works well for LED's
Tags (Optional)
Tags are keywords that get attached to your post. They are used to categorize your submission and make it easier to search for. To add tags to your post type a tag into the box below and click the "Add Tag" button.
Add Tag

Update Reply

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Model Railroader Newsletter See all

Sign up for our FREE e-newsletter and get model railroad news in your inbox!