This 10 watt Solar Panel is UL Listed: UL certification No.E330673. 6(in) Multi-crystalline solar cell. Low iron tempered glass (LIT Glass). EVA laminated + TPT backsheet . Cell: Multicrystalline Silicon Solar Cells 78mm x 26mm . No. of Cells and Connections: 36(4x9). Dimension 14.02 x 11.85 x 1.10