Jinko

Jinko JKM620N-66HL4M-BDV 620W Bifacial Solar Panel

SKU: JKM620N-66HL4M-BDV · Product code: SO6174

-29%620W

৳ 12,400৳ 17,360

In stock (193 units) · 12-year product warranty and 30-year performance warranty, subject to terms

JKM620N-66HL4M-BDV, 620 W rated
N-type monocrystalline cells
Bifacial dual-glass construction
22.95% STC module efficiency
STC Vmp 40.74 V
STC Imp 15.22 A
1500 V DC maximum system voltage
80 ± 5% reference bifacial factor
12-year product and 30-year performance warranty, subject to terms
32.4 kg, 2382 × 1134 × 30 mm

Product overview

Listed on SREDA's Net Metering solar-module list

The JKM620N-66HL4M-BDV is the 620 W bin of this family. It is one bin below the 625 W top of this family. The frame and glass are shared; the STC electrical values are not.

The F1 sheet describes N-type cells, HOT 2.0 and SMBB technology, in a bifacial dual-glass build. STC output is 620 W at 22.95%, with Vmp 40.74 V and Imp 15.22 A. NOCT power is 468 W. That is a different test, not a field guarantee.

The 80 ± 5% reference bifacial factor is not a guaranteed extra-energy percentage. Rear-side gain depends on height, albedo, shade and layout. 1500 V DC is the system limit, not this panel's working voltage. The 35 A figure is the maximum series fuse rating, not the operating current.

For this 620 W bin, NOCT Voc is 46.62 V and NOCT Isc is 12.98 A. Cold-weather string voltage starts from the STC Voc of 49.08 V, then has to stay inside the inverter limits, the cable design and local rules. This page does not give one string length for every site.

The Pmax temperature coefficient is −0.29%/°C, so a hot cell produces less than the 620 W nameplate. Shade, dust and rear ventilation change site output. Module wattage does not by itself set daily energy.

The module is 2382 × 1134 × 30 mm and weighs 32.4 kg, with an anodized aluminium frame. Mounting, extra cable and installation are not included in the 620 W panel price. Clean the glass without standing on the module or using abrasive tools.

Product warranty is 12 years. The performance warranty is 30 years of linear power coverage, not 30 years of full panel replacement. The F1 cover graphic prints 0.40% annual degradation and 87.4% at year 30. The supplied poster prints 12/25 years; this page follows the F1 datasheet.

JinkoSolar JKM600-625N-66HL4M-BDV-F1-EN · Official PDF

Warranty

100% original and official products from us, backed by a guarantee.

Product warranty: 12 years

Performance warranty: 30 years

The F1 cover also prints IEC 61215:2016 and IEC 61730:2016, plus ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 management-system lines. Those ISO lines are not a separate certificate of every module. Warranty coverage is subject to JinkoSolar's applicable official warranty terms, product version, region, installation requirements, and warranty claim conditions.

Technical specifications

Model	JKM620N-66HL4M-BDV
Product code	SO6174
STC Pmax	620 W
STC efficiency	22.95%
STC Vmp / Imp	40.74 V / 15.22 A
STC Voc / Isc	49.08 V / 16.08 A
NOCT Pmax	468 W
NOCT Vmp / Imp	38.25 V / 12.24 A
NOCT Voc / Isc	46.62 V / 12.98 A
Cells	N-type monocrystalline, 132 (2 × 66)
Glass	Front 2.0 mm AR glass, back 2.0 mm heat-strengthened glass
Size / weight	2382 × 1134 × 30 mm / 32.4 kg
Max. system voltage	1500 V DC (IEC)
Max. series fuse	35 A
Power tolerance	0 to +3%
Temperature coefficients	Pmax −0.29%/°C, Voc −0.25%/°C, Isc +0.045%/°C
Operating temperature	−40°C to +85°C
NOCT	45 ± 2°C
Reference bifacial factor	80 ± 5%
Frame	Anodized aluminium alloy
Junction box	IP68
Cable	4.0 mm², (+) 400 mm, (−) 200 mm
Packing	36 per pallet, 72 per stack, 720 per 40-foot HQ
Mechanical load	Wind 2400 Pa, snow 5400 Pa
Standards on the F1 cover	IEC 61215:2016, IEC 61730:2016
Linear power graphic	0.40% annual, 87.4% at year 30
Source	JinkoSolar JKM600-625N-66HL4M-BDV-F1-EN

Frequently asked questions

What is the current JinkoSolar JKM620N-66HL4M-BDV price in Bangladesh?

The selling price is ৳12,400 per panel. The regular price is ৳17,360. SOLAR24 lists 193 panels in stock. Mounting, cables and installation are not included.

What is the rated power of JKM620N-66HL4M-BDV?

Rated STC power is 620 W. It is one bin below the 625 W top of this family. STC power is measured at 1000 W/m², 25°C cell temperature and AM 1.5.

What is the STC efficiency of JKM620N-66HL4M-BDV?

STC module efficiency is 22.95%. That is the share of standard test irradiance converted by this exact bin, not a promised site yield.

How does this bin differ from the other five?

This page is the 620 W bin, one bin below the 625 W top of this family. The six modules share one mechanical design. Power, efficiency, Vmp, Imp, Voc and Isc change by bin. Do not copy the 625 W electrical row onto this panel.

What is the difference between STC and NOCT?

STC for this panel is 620 W. NOCT, at 800 W/m², 20°C ambient, AM 1.5 and 1 m/s wind, is 468 W. NOCT is another test condition, not guaranteed field output.

What are Vmp, Imp, Voc and Isc for JKM620N-66HL4M-BDV?

At STC, Vmp is 40.74 V, Imp is 15.22 A, Voc is 49.08 V and Isc is 16.08 A. Vmp and Imp are the maximum-power point. Voc is open-circuit voltage. Isc is short-circuit current.

What is the maximum system voltage?

Maximum system voltage is 1500 V DC (IEC). That is the array limit, not this panel's working voltage. This panel's STC Vmp is 40.74 V.

How many cells does the module contain?

132 cells, arranged 2 × 66. The F1 sheet describes an N-type monocrystalline bifacial dual-glass module with HOT 2.0 and SMBB technology.

What is a bifacial dual-glass panel?

Both faces are glass: 2.0 mm anti-reflection glass in front and 2.0 mm heat-strengthened glass at the back. The rear can convert light that reaches it. How much extra energy that makes depends on height, albedo, shade and layout.

Does 80 ± 5% bifacial factor mean 80% extra electricity?

No. The F1 sheet lists a reference bifacial factor of 80 ± 5%. That is not a guaranteed percentage increase in total generation.

What are the dimensions and weight?

Dimensions are 2382 × 1134 × 30 mm. Weight is 32.4 kg. The frame is anodized aluminium. The junction box is IP68. This mechanical row is shared by the family; the electrical bin is still 620 W.

What is the operating temperature range?

Operating temperature is −40°C to +85°C. NOCT is 45 ± 2°C. The Pmax temperature coefficient is −0.29%/°C, so hot cells produce less than the 620 W STC nameplate.

What is the maximum series fuse rating?

Maximum series fuse rating is 35 A. That is a protection rating, not this panel's operating current. STC Imp for this bin is 15.22 A.

What is the product warranty?

The F1 cover prints a 12-year product warranty and a separate 30-year linear power warranty. The same graphic prints 0.40% annual degradation and a year-30 mark of 87.4%. That is retained power, not 30 years of full panel replacement. Coverage still follows JinkoSolar's applicable terms, version, region and installation conditions.

Is this exact model listed by SREDA?

Yes. A search on 29 October 2026 returned JKM620N-66HL4M-BDV on SREDA's Net Metering solar-module list. A listing for another wattage in this family does not replace this row. Each project still needs its own utility approval.

How should this panel be matched to an inverter?

Use this bin's STC Voc of 49.08 V for cold-weather string voltage, and Imp of 15.22 A for current. String length must stay inside the inverter's voltage, current and the 1500 V DC system limit. This page does not give a universal panel count.

Does the price include mounting and installation?

No. ৳12,400 is the panel price. Mounting structures, extra cable and installation are separate.

What should a buyer check before purchasing?

Confirm the label reads JKM620N-66HL4M-BDV, 620 W, efficiency 22.95%, and Voc 49.08 V. Check the SREDA status for this exact model, then size the string to the chosen inverter. Keep the invoice for the 12-year product warranty and the 30-year performance warranty.