21V 170mA Solar Panel - Solar Cell 120x194mm
Solar panel that you can use in your projects. It works with maximum performance under sunlight.
Operating Voltage: 21V
Operating Current: 170mA
Dimensions: 120 x 194 mm
The product was obtained by recycling. For this reason, there may be some traces on the product that will not prevent it from working.
Solar Cell
Solar cell is a solar cell that captures sunlight and It is an electronic device that converts electricity directly. Just like the cells in a battery, the cells in a solar panel are designed to produce electricity; But where a battery's cells generate electricity from chemicals, a solar panel's cells generate power by capturing sunlight.
A solar cell is a sandwich of n-type silicon (blue) and p-type silicon (red). It generates electricity by using sunlight to make electrons jump between different silicones:
- When sunlight shines on the cell, photons (light particles) bombard the upper surface.
- Photons (yellow) pass their energy through the cell.
- Photons release their energy to electrons (green) in the lower, p-type layer.
- Electrons use this energy to jump across the barrier to the upper, n-type layer and escape into the circuit. This unidirectional flow of electrons creates direct current and lights the lamp.
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