LED Question

[wvgca]

many users don't look at the age of a thread, only if the thread is relevant to them now in the present day ....

and many don't use the search feature, just look  at 'new' posts ...

[richhotrain]

wrench567

  Another old thread. Why are you bringing up old threads? 

York1

I'm interested, even if it's an old thread. 

The problem yesterday was that a guy with only 8 prior posts showed up and posted on 14 different old threads from the Electronics and DCC forum within a 2-hour period. Most of those 14 threads were started last January or even earlier except one.

So, I think that Pete is correct in asking, why bring up old threads? If this kept up, we could have been faced with 100 old threads or, who knows, perhaps many many more.

It had the makings of a ridiculous situation.

Rich

[York1]

I'm interested, even if it's an old thread.

[wrench567]

  Another old thread. Why are you bringing up old threads?

[wvgca]

yes, higher resistance equals less light .. the default most calculators use is 20 milliamp, maximum brightness on most T3 and T5 LEDS , you can easily double the resistance for less [but still adequate ] light, and longer life ... the colour of the LED usually determines maximum voltage, ie: white equals 3 volt, red / blue 2.5 volt  , etcetera  .. tisnish ?

[know2go]

Higher drop resistor - less brightness. Higher resistance is more limiting to the current flow throw LED, hence less brightness.

[gregc]

higher resistance, less current, less light.

when in doubt try a higher resistance (1k)

[ndbprr]

Higher resistance brighter light or less light?