On sale! Solar Panels Solar panel LONGI Mono PERC 540Wp Bifacial LONGIPERC550BIFACIAL €154.88 Check availability Monocrystalline Longi solar panel of 550 Wp (144 split cells) Monocrystalline photovoltaic module of PERC technology (Passive Enitter Rear Cell) of the Longi Solar brand of 550Wp with a high efficiency of up to 21,3%. This solar panel has a positive power tolerance of 0/+5W that ensures the production of energy throughout its life.... Add to cart