0.2W 2V solar panels polycrystalline silicon solar panels DIY solar panels + red and black lines

0.2W 2V solar panels polycrystalline silicon solar panels DIY solar panels + red and black lines Package Contents: 1x solar panels Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.