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TOPCon Solar Panel

Home / Products / Solar Panel / TOPCon Solar Panel / LONGi Hi-MO7 Bifacial 615-645w LR5-78HGD

LONGi Hi-MO7 Bifacial 615-645w LR5-78HGD

Bifacial, TOPCon, N-type
23.1 %
615-645Wp
35.1 kg

▶ Adapted for Distributed Projects.

▶ HPDC advanced cell technology enhances module efficiency and power output.

▶ High bifaciality and excellent power temperature coefficient deliver significant energy yield gains.

▶ LONGi’s lifecycle standards enable consistent long-term energy performance.

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Technology Bifacial, TOPCon, N-type

Power Range 615-645 Wp

Region China

Weight 35.1 kg

Product Warranty 12 Years

Power Warranty 1 Years of 99 %, 30 Years of 87.4 %

Panel Efficiency 23.1 %

Dimension 2382×1134×30 mm

Glass Thickness 2 mm

Temperature Coefficient of Pmax -0.28 %/°C

Cell Number 156

HPDC (TOPCon) advanced cell technology for enhanced energy generation
High bifaciality enabling additional rear-side power gain
Optimized temperature coefficient for improved hot-climate performance
Dual-glass structure for enhanced reliability and long service life
12-year product warranty and 30-year linear power warranty

LONGi Hi-MO7 Bifacial 615-645w LR5-78HGD

Additional Value
30-Year Power Warranty

Mechanical Parameters

Cell Orientation	156 (6×26)
Junction Box	IP68, three diodes
Output Cable	4mm², +400, -200mm/±1400mm Length can be customized
Glass	Dual glass, 2.0mm heat-strengthened glass
Frame	Anodized aluminum alloy frame
Weight	35.1kg
Dimension	2465×1134×30mm
Packaging	36pcs per pallet 144pcs per 20'GP / 576pcs per 40'HC

Electrical Characteristics

STC: AM1.5 1000W/m² 25°C NOCT: AM1.5 800W/m² 20°C 1m/s Test uncertainty for Pmax: ±3%

Module Type	LR5-78HGD-615M		LR5-78HGD-620M		LR5-78HGD-625M		LR5-78HGD-630M		LR5-78HGD-635M		LR5-78HGD-640M		LR5-78HGD-645M
Testing Condition	STC	NOCT	STC	NOCT	STC	NOCT	STC	NOCT	STC	NOCT	STC	NOCT	STC	NOCT
Maximum Power (Pmax/W)	615	468.2	620	472	625	475.8	630	479.6	635	483.4	640	487.2	645	491
Open Circuit Voltage (Voc/V)	56.75	53.93	56.91	54.08	57.07	54.24	57.23	54.39	57.39	54.54	57.55	54.69	57.71	54.84
Short Circuit Current (Isc/A)	13.73	11.03	13.79	11.08	13.85	11.13	13.91	11.18	13.97	11.22	14.02	11.26	14.09	11.32
Voltage at Maximum Power (Vmp/V)	47.5	45.15	47.66	45.3	47.82	45.45	47.99	45.61	48.15	45.76	48.31	45.92	48.47	46.07
Current at Maximum Power (Imp/A)	12.95	10.37	13.01	10.42	13.07	10.47	13.13	10.52	13.19	10.57	13.25	10.61	13.31	10.66
Module Efficiency(%)	22		22.2		22.4		22.5		22.7		22.9		23.1

Electrical characteristics with different rear side power gain (reference to 625W front)

Pmax /W	Voc/V	Isc /A	Vmp/V	Imp/A	Pmax gain
656	57.07	14.55	47.82	13.72	5%
688	57.07	15.24	47.82	14.38	10%
719	57.17	15.93	47.92	15.03	15%
750	57.17	16.62	47.92	15.68	20%
781	57.17	17.32	47.92	16.34	25%

Operating Parameters

Operational Temperature	-40℃ ~ +85℃
Power Output Tolerance	0 ~ 3%
Maximum System Voltage	DC1500V (IEC/UL)
Maximum Series Fuse Rating	30A
Nominal Operating Cell Temperature	45±2℃
Protection Class	Class II
Bifaciality	80±5%
Fire Rating	UL type 29 IEC Class C
Fire Rating	UL type 29 IEC Class C