RioRand (TM) RRLS1024R 20A 12V 24V EP PWM Solar light Controller With Timer light sensor Powered by RioRand advanced solar technology 20A 12V 24V RRLS1024R LandStar Solar Charge Controller Light and timer control RioRand solar regulator for street light Sensor and Timer Control Dual timer function,Battery type selection and Full electronic protection