This project is on my boat which has 3 Group 27, 12V batteries in series which is my house power source.
I want to power approx. 510 LED lights from my 12V house batteries. The lights are taken from several string lights originally part of a system consisting of approx. 100 lights powered by a rechargeable 3.2V 300mAh battery and a small solar panel. I intend to discard the batteries and solar panels and connect these strings together to form 1 string.
My thought was to use a DC-DC Converter 12V to 3.3V, 3A max step down voltage regulator transformer (DROK 090601).
I am not an electrical engineer and am looking for concurrence or guidance on a workable design.
Thank you in advance for any advise offered.