... , Round, Small, Big 2. Monocrystalline silicon 3. Polycrystalline silicon 4. High quility Solar panel book / PV panel cell Power: 10W/pc, ... resistance .5,Highly transparent , low-iron , tempered glass and antireflective coating6,Excellent performance under low light environments ... installation and long tern relibaility 10W Monocrystalline Silicon Solar panel, mini PV panel solar cell 5w 10w 20w 40w