Specially designed for use with XUNZEL PV solar modules (max 120W). Dual Solar Charge Controller 10A 12V iSCC-DUO XUNZEL. Specially designed for solar charging of dual battery banks. Optimized for AGM or GEL lead acid batteries. No need for 2 charge controllers to charge two independent batteries. Easy to read display. 3 LEDs to indicate system status. Ideal for charging the starter battery and the service battery of your boat, caravan or motorhome.