The parameters of the solar panel are clearly written. The output voltage is 18 V and the output current is 0.28 A. Voltage multiplied by current equals power. the solar panel is 5.04 watts.
The voltage of a single solar cell is generally 0.0.7V. Generally, 36/54/60/7296 solar cell modules are connected in series, and the voltage is from 18/27/30. /36 / Approximately 48 volts. It should be noted that the voltage of small divided cells is always the same as that of a single cell. Since they are connected in series, the current to the cells and components is typically 4 to 5 amps. a 5 inch cell and 4 to 5 amps for a 6 inch cell. The battery is 7 to 8 amps.
The output voltage is the maximum voltage delivered by the electronic component. In other words, the output voltage refers to the voltage value in the direction of the output current of an electronic device. The reason why there is a proper term "output voltage" is that the input voltage and output voltage of all devices. are not equal. In this process there is a pressure drop.