Hi, I hope this is posted in the correct place..
I have a lamp which features 3 candle effect LEDs, each powered individually by 3 x 1.5v AAA batteries. I'd like to convert this to something that I can plug into the wall.
I thought that using a spare laptop charger might be useful for a power supply (is it?)
Can anyone advise on how to go about this? What might the circuit diagram look like? I suspect that I need to:
1) Reduce the 19v from the laptop charger to 13.5v (4.5v * 3) - How is best to do this?
2) Wire each of the lights in series in order to supply 4.5v to each of the bulbs. From my limited knowledge the same current will flow through each bulb but the voltage will be divided between the three?
Very much a beginner so wanted to ask your advice on this. Thanks in advance.
Please see the attached images.