These high performance monocrystalline solar panels are much smaller, thinner, higher in efficiency and more affordable than our previous models. The manufacturing process for this range uses 36 pieces of 156x156mm A-grade solar cells cut into defined sizes with 4 grid lines, which provides excellent performance under low light environments. Each panel is designed to withstand harsh environmental conditions with a durable anodised aluminium frame and 3.2mm low iron tempered glass. The glass is anti-reflective and has a hydrophobic effect to resist dirt and dust, improving light absorption thereby preventing any needless power loss. The junction box and bypass diodes stops the panel from overheating and suffering from the “hot spot effect”. The entire range is easier to install with minimal ongoing maintenance and compatible with industry standard inverters and mounting systems. 25 year limited warranty All Powertech monocrystalline solar panels are covered by a 25 year limited warranty. This warranty covers the panels for defects in construction and manufacturing for a period of 5 years, and warrants that the electrical output will remain above 80% of its original rated output for a period of 25 years. Maximum power (Pmax): 40W System Output Voltage: 12V Open circuit voltage (Voc): 21.5V Short circuit current (Isc): 2.5A Voltage at max power (Vmp): 17.2V Current at max power (Imp): 2.33A Termination: PV Plug Cable length: 900mm Dimensions: 664×408×25mm Specifications Packaged Volume : 11.42l Packaged Weight : 3.5kg Packaged Length : 68cm Packaged Width : 42cm Packaged Height : 4cm Length : 664mm Width : 408mm Height : 25mm Cable length : 0.9m DC Voltage : 12V Continuous Power : 40W Solar panel type : Monocrystalline Mounting Method : Standard Universal Mounting Material : aluminium Cover Material : tempered glass Open Circuit Voltage : 21.5V Short Circuit Current : 2.5A Voltage at Power Max : 17.2V Current at Power Max : 2.33A Power Connector : 4mm PV Connector (MC4 Style) Bypass Diode Included : true