JA Solar 550 Watt Solar Panel

The JA Solar 550W solar panel blends high power output and modern half‑cell monocrystalline PERC technology to deliver reliable, efficient, and durable performance. With 144 cells in a half‑cut configuration, this module reduces resistive losses and improves shading tolerance — ensuring strong performance even under suboptimal light conditions. Its 550 W output and ~21.3% efficiency make it an excellent option for residential rooftops, commercial buildings, industrial solar farms, off‑grid systems, or hybrid setups.

MECHANICAL DATA
Cell	Mono-16BB
Weight	27.3kg
Dimensions	2278±2mm*1134±2mm*30±1mm
Cable Cross Section Size	4mm²(IEC)，12 AWG(UL)
No. of cells	144(6*24)
J-Box	IP68, 3 diodes
Connector	QC 4.10-351/ MC4-EVO2A
Front Glass	3.2mm

ELECTRICAL DATE(STC)
Nominal Max. Power (Pmax)	540w	545w	550w	555w	560w	565w
Power Tolerance	0~±3%
Open Circuit Voltage(Voc) [V]	49.6	49.75	49.9	50.02	50.15	50.28
Maximum Power Voltage(Vmp) [V]	41.64	41.8	41.96	42.11	42.27	42.42
Short Circuit Current(lsc) [A]	13.86	13.93	14	14.07	14.14	14.21
Maximum Power Current(lmp) [A]	12.97	13.04	13.11	13.18	13.25	13.32
Module Efficiency[%]	20.90%	21.10%	21.30%	21.50%	21.70%	21.90%