Featuring a blue back-lit LCD displaying system information including error codes, the Voyager 10 amp charge controller is engineered to be of world-class quality. Not only is it waterproof, but it is also equipped with advanced PWM technology suitable for 12V and 24V off-grid applications, and compatible with 4 different battery types, including Lithium! Ensure your system's longevity and stay worry-free as the Voyager also has you covered with multiple solar panel, battery, and controller protections. It's the perfect solar panel accessory.