What's the slowest you would you would want the LED to flash to save power?

The original requirement is for a steady-state LED. I suggested flashing it rapidly (too fast to perceive) to decrease power consumption.

ak

 

The original requirement is for a steady-state LED. I suggested flashing it rapidly (too fast to perceive) to decrease power consumption.

Yes, but from this comment

I was going to use a smaller LED and try to make it flash?

I assumed he was referring to a slow flash to minimize the average current consumption.