SMA Sunny Boy Inverter SB4000 TL-20 4Kw Solar PV 4000 Watts Dual MPPT This has been working perfectly since it was installed in 2011 but have just had a solar battery fitted and that required a hybrid inverter so this is now going spare. It’s very heavy (25kg) hence ‘collection only. It comes complete with its fitting plate, an installation manual and user manual. There are also an isolator switch and 2 other switch boxes included.
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