Season's greetings,
I bought three sets of Christmas lights for my garden. Each set consits of 4 tiny bulbs (maybe LED's) that change colour. Each set has a battery box faced with a small solar panel intended to recharge the batteries during daytime. Each battery box contains three Ni-Mh AA cells.
Unfortunately, the small solar panels only recharge the batteries enough to prvide about 30 minutes of lighting. (I live at rather a far-northerly latitude, which may be the problem.)
So, what I would like to do is disconnect the solar-powered battery boxes and connect all 12 lights together, and run the whole lot off my mains supply. Can anyone advise what is the correct voltage and ampage I need to supply to the 12 lights with? I presume the lights are connected in parallel. Do I still need to supply 4.5 volts, or will I need 4 x 4.5 volts? I have a box full of wall warts; I'm hoping one of them will provide a suitable voltage and ampage.
Thank you kindly for any help.
JD