Optimize Performance with sophisticated Phocos CIS Solar Charge Controllers
The Phocos CIS family of charge controllers has day and night detection for outdoor lighting applications. This is called hysteresis. Without hysteresis, power to streetlights will be unstable. Meaning our sophisticated CIS controllers have 2-way PV voltage detection, at two different levels needed for an outdoor light to respond properly at sunset and sunrise. This product line optimizes performance and helps avoid problems during cloudy days. See our products.