Common Radio Shack packaged are around 2000 to 4000 mcd, see the package. I went to a 6000 mcd to get a bright headlight using O scale AC. Now they are more brighter and more expensive. The latest is surface mount. Very small and ideal for lighting bought premounted because of the size.
Most LEDs are rated at 20ma max. I run most of mine at 10ma. There is a little difference in intensity. I usually start with 1k and go down to maybe 680 ohms. At 650 ohms the current is usually around 15 ma. I like to experiment until I get the intensity I like.
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.
submanWhen referring to LED`s what does viewing angle mean?
Can't answer the other question. I just try different resistors until I get the intensity I desire for a given application. Many model railroading applications do not need the ultra-bright intensity.
When referring to LED`s what does viewing angle mean and what intensity is a good amount of light? Thanks
Bob D As long as you surface as many times as you dive you`ll be alive to read these posts.