04-22-2018, 10:30 AM
"I have several 18V panels. These might work with a 12V controller. but at the expense of losing 30% of the wattage."
You're talking about a PWM controller, correct? A MPPT controller should automatically down-adjust the voltage by increasing the amperage, therefore, no significant loss?
You're talking about a PWM controller, correct? A MPPT controller should automatically down-adjust the voltage by increasing the amperage, therefore, no significant loss?