Morningstar SG-4 Charge ControllerSunGuard is a single module, compact solar charge controller for small systems, ideal for both professional and consumer use. Featuring the same components, charging circuit, and build quality of Morningstars industry leading SunSaver controllers, SunGuard is easily the most compact, advanced and economical solar charge controller on the market today. With SunGuard, theres no reason not to insist on Morningstar quality with any system designno matter
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