BlueSolar PWM-Light Charge Controller - 12/24V - 20AMPFeatures: Load output with low battery voltage disconnect function. Lighting control function, one timer only. Two digit seven segment display for quick and easy setting of the load output functionality, including timer setting. Three stage battery charging (bulk, absorption, float), not programmable. Load output protected against over load and short circuit. Protected against reverse polarity connection of the solar array and/or battery. Day/night timing options: see manual for details Warranty InfoWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.Please contact your dealer for any returns, repairs or support issues related to this product. Quick Guide (pdf)Brochure (pdf)