SOLAR CONTROLLER FOR SOLAR HOME SYSTEMS EPSOLAR is high quality and reliability is now available in a low cost solar controller. The EPHC Controller is ideal for rural electrification systems. It provides many features and benefits. RATINGS: 12/24 VOLT auto-work EPHC-5: 12 VOLT or 12/24 VOLT auto work, 5 AMPS EPHC-10: 12 VOLT or 12/24 VOLT auto work, 10 AMPS