Features: Over-load protection Short circuit protection Protection from the light ningstrike Under-voltage protection Over-charging protection Microcontroller digital accuracy 16 field adjustable light ing control options Detects day and night using the PV array Suitable for all 12/ 24 V DC lamps Suitable for Seal lead acid battery Working Temperature: -20℃-50℃ Size: Approx. 10.3x9.5x4cm/ 4.06x3.74x1.57" Package Included: 1 x 12V/ 24 10A Solar Controller 1 x User Manual