Cellcronic Solar Voltage Protection Device is used to protect solar panels from overvoltage and undervoltage conditions. It is designed to be installed between the solar panel and the inverter, and it is capable of detecting and responding to voltage fluctuations. The device can be programmed to shut off the power supply when the voltage exceeds a certain threshold, preventing damage to the solar panel and the inverter. It also features a built-in alarm that will sound when the voltage reaches a certain level, alerting the user to the potential danger. Moreover, this Cellcronic Solar Voltage Protection Device is easy to install and use, and it is compatible with most solar panel systems.