I've got the appropriate amount of light for my microscope ring light, but now I need to put it all in an enclosure of some sort.
If I don't have a custom board to solder these to, what are my best options for connecting these she mounting them into something?
If this is too vague, please let me know if I can clarify
For example, as the leds on the original circuit age, you can expect a few of those lines to stop getting any current, and the others to get brighter and brighter until they fail.
That can happen very quickly too, if their temperature varies a lot (how much is a lot depends on the leds). Or if you change your power supply for one capable of more current, it's likely that everything will just fail immediately. Or, if you have a noisy one, you may severely reduce the leds lifetime.
As a rule, you can't use diodes internal resistance as a power limiter. It does not behave the same way as resistors and will surprise you on every bad way possible.
Huh, if I had the time I'd do some reading about it. Sounds like there's some really interesting physics going on there