Only one year warranty. I suspect the manufacturer is unsure if this will hold up over the long term. My last Renogy supplied unit (not this one but the same as the Chicom one that came with the Renogy solar kit) lasted 5 years before the electrolyte exploded. Still a good device, solidly built and easy to hook up to your own remote control if you just want to turn it on and off. off and do not require remote LED displays. Simply connect the switch leads to the middle two pins of the RJ45 connector.
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