Agony of Confusion About Batteries and Current

[danallen]

@HKJ

@danallen

@HKJ

With resistors it is often a question about getting the correct values and power ratings, it is easier to parallel a couple of common values, than try to get a special value in a high enough power rating.

Oh!!! well that paints a different picture from the wrong one I had in my head. Thank you very much.

With resistors there are some other points:

Resistor have many other application than limiting the current to the led, i.e. when there are multiple resistors it can also be for other reasons. The current limiting resistors will often be the largest ones.

Capacitors may look like resistors (They usual have another color and no letters/numbers on them), but have other functions.

When modding a driver to higher output power, it is often easier to solder a resistor “piggy back” on the current limiting resistor, than it is to replace the original resistor.

When it comes to modding a light, I am having trouble identifying a worthwhile mod, because it seems as if everything I might want already is available at the same cost or better than it would cost me. I still want to do some mods, because that has to be best way to learn how the lights work, once you have a reasonable framework for understanding. Most of these components are theoretical for me at this point. In a college lab, there was a poster: One experiment is worth one thousand theories.