Click here, you can see more surprises about Christmas. It is the second generation of the small solar controller, more reliable, and economical. It is ideal for off-grid solar panel system. Features: 1.Microcontroller digital accuracy 2.PWM charge mode &state of charge (SOC) 3.Fully automatic operation & Electronic protections 4.External Temperature Compensation: -30mV/ C/12V 5.Big terminals, big distance between terminals. 6.EBSHC10-ST: 12 VOLT, 5 AMPS (for PV and load) 7.Dimension: 150x108X41mm 8.weight:155g package include: 1X solar light