The Velleman SOL1N polycrystalline solar panel is a small, efficient photovoltaic module with a 0.5 V output, ideal for didactic and hobby projects. Crafted by Velleman, this mini solar module serves educational purposes and hands-on learning experiences. It is often used in craft solar applications and small-scale renewable energy demonstrations. https://elecena.pl/product/28691821/velleman-sol1n-polycrystalline-solar-panel-0-5v-efficient-solar-cell 2025-05-14 https://elecena.pl/product/28691821/velleman-sol1n-polycrystalline-solar-panel-0-5v-efficient-solar-cell 2026-03-06