I'm planning to make my own blinking candles for my scared stiff skull pile. I already had two fake candles at home with a built in blinking LED that operates on a 3v lithium battery so I want to use those.

My plan is to make this the easiest possible way and hook them up to the GI in the game. First I thought about simply adding two suitable resistors in series (a simple voltage divider circuit) and get my ~3v DC from there. After thinking a bit more I realized that the blinking LED probably won't flicker "randomly" if it doesnt get feeded with continuous DC instead of half rectified AC.

Is there any simple circuits I could build to fix this or do I have to get a rectifier (basically 4 diodes) to properly convert AC to DC?

What would I need to go from 6.3AC to ~3v DC?

I know some basic electrical stuff but AC makes things more complicated imo

Care to elaborate, what's a "diode block"?

I know I can make my own rectifier with four diodes, is that what you are suggesting?

That would give my LED about 5.1v DC right (considering each diode lowers about 0.6v)?

So that rectifier and then the voltage divider circuit after to get down to 3v?

Edit: somehow I didn't see that picture before answering.

I tried earlier to run one of them on 5v DC and it blinked as it should but no idea if it will burn out after a while (there are no markings so I don't know their specifications).

My guess is that if I put them in serial when the first LED turns off the second after looses all power and goes off too? Probably only good to put them in parallel as I want the flickering to look random.

Looking at bridge rectifiers. If I can choose between a bridge rated to say 50V 2A and another with 600V 6A and all other specs are the same (even price) except for the physical size that doesn't matter in my case then there is no reason to not go for the higher rated one right?

I know it's overkill for this project but still, why buy an inferior product for about the same price or am I missing something here?

There might be kits that fit my needs but the existing led candles I dismantled to use doesn't just flicker on and off but rather fade in and out in a seemingly random pattern, more similar to a real candle. Buying a kit unseen I might end up with something less realistic looking.

Some may wonder why I just don't buy a finished mod instead but I like having a project that isn't too complicated and be able to learn more about electronics at the same time.

Looks like a really neat solution. Having an adjustable output sound very flexible too.