Projecta DC-DC 12/24V 45A45A Solar MPPT operates as a solar controller, maximising the power generated from panels Sealed to IP67 Can safely operate (at a reduced charge rate) in extreme temperatures up to 80C Works with both smart and conventional alternators Suits Wet, Calcium AGM or Gel batteries (not suitable for Lithium batteries) Simultaneous dual battery charging from both solar and alternator inputs Over temperature, reverse connection, over under voltage and spark