RESDRC is designed for solar DC lighting system. There are several optional working modes including Light ON + Light OFF control mode, Light ON +set time OFF delay mode, Test mode, and general mode DC output mode and two time setting modes Digital LED display shows the 16 lighting options(by switch with 5 seconds). 0, 1, 2, 3, 4, 5, 6, 7 Hours light is turned on after sundown 0.12 hours light is turned on after sundown 1. Dusk-to-Dawn, light is on all light 2. Lights remain turned off, ON/OFF mode 3. Test mode, lights on after it detects no light, lights off after it detects light. 4. Or 5. Or 6. Or 7. Light is turned on for 2 hours(or 3 hrs, or 4 hrs, or 5 hrs)after sundown, turned off then, and turned on for 2 hours(or 3 hrs, or 4 hrs, or 5 hrs)before sunrise. RATINGS: 12/24 VOLT auto-work EPRC-MT-5: 12 VOLT or 12/24 VOLT auto work, 5 AMPS EPRC-MT-10: 12 VOLT or 12/24 VOLT auto work, 10 AMPS Regulation point: 14.4 Volt Low voltage disconnect: 11.10 Volt Low voltage Reconnect: 12.5 Volt Self-consumption: 6mA maximum Electronic protections Terminals: For wire sizes to 2.5mm2 Type of Charging: Series PWM Temperature: -35 to +55 Weight: 250g Dimension: 140x90.5mm Compliance: CE,ISO9000