My wife bought 2 battery operated LED decoration lights. They work with 3xAA batteries. They are pretty nice looking but with a drawback. No regalation. Light starts to dim pretty soon. They maintain a reasonable brightness for few hours but after that they are moonlights...
Is there a driver available for this kind of light ?
Package indicates that there are 20 LED's in one light with 0.064W consumpiton per led.
Yes, that is nearly the same light that i have. What i can see from the picture there seems to be a driver in your version. Mine has only a resistor in it.