Solar Panel 20W-36 cells Mono 275x450x25mm series 4c, SPM040203603, Victron Energy - Low voltage-temperature coefficient enhances high-temperature operation.Exceptional low-light performance and high sensitivity to light across the entire solar spectrum.25-Year limited warranty on power output and performance.5-Year Limited warranty on materials and workmanship.Sealed, waterproof, multifunctional junction box gives high level of safety.High performance bypass diodes minimize the power drop caused by shade.Advanced EVA (Ethylene Vinyl Acetate) encapsulation system with triple-layer back sheet meets the most stringent safety requirements for high-voltage operation.A sturdy, anodized aluminium frame allows modules to be easily roof-mounted with a variety of standard mounting systems.Highest q