Contact Phocos Technical Support

Technical Support
Ph: 520.777.7906; select Option 2
Submit a question: Tech Support Form

Technical Bulletins


Can’t decide between a PWM or MPPT charge controller? Whether you’re just getting started in off-grid or you’re an experienced installer this guide will help you determine the best type of controller for your next solar project.

4 Installation Tips for CIS-N-LED Charge Controllers

Here are four tips to make sure your CIS-N-LED is installed properly for trouble-free operations in solar lighting applications for streets, pathways, parking lots and bus shelters.

Replacing Discontinued ProStar PS-15M-48V

Morningstar recently announced the discontinuation of its ProStar PS-15M-48V solar charge controller. Phocos’ Dingo D2020N solar charge controller is an excellent drop-in replacement for the PS-15M-48V.