Wiring 50 10W+ RGB LED pond lights

[lukecrawley]

It's for a temporary art installation, and from what I've read it's extremely common to wire batteries in parallel for solar applications where only 12V is needed, but with long run times. Am I missing something? I'm using 12V LED lights, so I don't need a 48V supply, I just need a 12V supply. I don't think I'd want to put 48V in the water anyway.

[Logan005]

12 volts is not good for your demands. Your system would need to be 48 volts, Minimum of 6 volt L16 style cells X 8 of them wired in series. you would also need an MPPT charge controller and at least 1500 watt's of solar panels. it is not good to wire batteries in parallel, sealed batteries can not be serviced and last 2 years or so in a cyclical environment. Your load is too large for a 12 volt or even a 24 volt system. Reduce your requirements or be prepared to spend several thousand on batteries ever 2 years or so.

[lukecrawley]

No grid power. Batteries will be in parallel, system is only 12VDC. Panels in parallel, and lights in parallel. Sealed AGM batteries.

I guess I used the calculator wrong? What should I be looking at for batteries?

[Logan005]

is this a location with out grid power? 5 X 75ah @ 12 volt batteries wired in series? flooded Lead acid batteries or sealed? Really 50? 10 watt light? is 500 watts. your gonna need a lot bigger battery even for just a few hour run time.

[lukecrawley]

I need 4hrs per day of run time in a location that gets 4 solar hours per day. I've used a solar calculator to determine I need 5 75Ah batteries and 11 100W panels. My question is, should I wire everything up in parallel in one big 50 light circuit? Or would I be better off with 5 (or however many) individual circuits each with 1 batt, 2 panels and 10 lights? I chose 75 Ah batteries because I already had two, but should I consider smaller batteries with fewer lights off each? I know 10W each is not that much, it just feels like an awful lot of lights on one circuit, be it 50 or even 10.

Also, if anyone has a good source for IP67 RGB LED pond lights other than what I can find on Amazon I sure would be appreciative. Thanks!!