Battery indicator hole
240KW/400KW industrial rooftop - commercial rooftop - home rooftop, solar power generation system.
This battery level indicator offers four LEDs that light up progressively as the voltage increases: Red: Representing 20%; Yellow(1): Representing 50% ... Set aside all the way to installation of Battery testing interface and two Positioning Holes; Special Function: Common Point Contact Diode; Colour: Blue; Minimum Operating Temperature: -40°C ...