The CC-PPL-12/24V-20A from Systellar Innovations is a Solar Charge Controllers with System Voltage 12 to 24 V, Rated Current 20 A, Power Rating 300 to 600 W, Operating Temperature 0 to 45 Degree C. Tags: Pulse Width Modulation (PWM). More details for CC-PPL-12/24V-20A can be seen below.