Photovoltaic panels are panels composed of multiple photovoltaic cells, mainly converting light energy into electricity through the action of sunlight. The working principle is roughly as follows:

1. Light irradiation: When sunlight shines on the photovoltaic panel, photons will collide with the semiconductor material in the photovoltaic cell, causing some electrons to be released from the atoms.

2. Generating current: When electrons are released, a current is formed under the action of an electric field, which is output to an external circuit through wires.

3. Power supply usage: The output current can be used to supply power to various electrical equipment, such as household lighting, televisions, refrigerators, etc.