LONGi has produced photovoltaic cells since 2007 and is the world leader in photovoltaic cell production. The LR64 lineup is an efficient monocrystalline 72-cell module, with excellent electrical and solid structural performance . These modules feature black 35mm frames with white back sheets, MC4 connectors, and industry-standard -0/+5W sorting.

LONGi backs these modules with a 10-year product warranty and 25-year linear warranty. They are certified to UL 1703, IEC 61215, IEC 61730 and are manufactured in an ISO 9001/14001 certified facility.

The LONGi 440W Solar Panel LR4-72HPH-440M has an outstanding aesthetic appearance, best suited for rooftop and commercial solar installations.