72 Hyundai PERL monocrystalline solar cells in series 4mm² (12AWG) cables with weatherproof connectors IP67 weatherproof junction box 3 bypass diodes to prevent power decrease by partial shade The HiS-S325TI features an anodized aluminum frame Made in Hyundai Heavy Industries' Factory in Korea 16.6% module efficiency.

High Efficiency LG NeON® 2 72cell Module Cells: 6 x 12 Module efficiency 19.3% Connector Type: MC4

Solar Cells: Polycrystalline 156.75*156.75mm No.of Cells: 48(6*8) Dimensions: 1324*992*35mm (52.1*39.1*1.38in) Weight: 14.5kg(32.0 lbs)