Photovoltaic Panels Solar panel LONGI 450W HiMO4 72HBD Bifacial LR4-72HBD €183.68 450W solar panel and 20.7% efficiency. The bifacial technology allows the collection of additional energy in the rear part (up to 25%). This panel has a better use of energy with an excellent performance of low irradiation and temperature coefficient. Annual power reduction of 0.45%. The optimised electrical design and lower operating current reduce the... Add to cart