Sunnytech 0.5w 5v 100ma Mini Small Solar 2w 6v USB Epoxy Cell Charger B016-B032
- ...panel, compact & stylish size, easy to be held, can be easily taken to outdoor activity. High conversion rate, high efficiency output, excellent weak light effect..
- EDUCATION---- Solar panels are devices that absorb sunlight and convert solar radiation directly or indirectly into electricity through photoelectric or photochemical effects, it's perfect devices for science project..