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Jinko Solar JKM620N-66HL4M-V

Monofacial N-type TOPCon module with 132 half-cut cells and 3.2 mm front glass, sold in Nigeria for space-constrained higher-wattage strings. Shares the 66HL4M frame with the bifacial BDV variant.

Specifications

Imp15.16 A
Isc16.15 A
Vmp40.90 V
Voc48.95 V
Weight28.2 kg
Warranty12-year product / 30-year linear performance
Cell typeN-type TOPCon monocrystalline
Max power620 W
Cell count132 (66 × 2 half-cut)
Dimensions2382 × 1134 × 35 mm
Efficiency22.95%
Max system voltage1000/1500 V DC (IEC)
Power temperature coefficient−0.29%/°C

How to read this record

  • Voc is an open-circuit voltage, not the operating voltage. String voltage must be checked at the coldest expected temperature.
  • Vmp and Imp are the operating points the MPPT will track. Isc is a separate limit some inverters specify separately.
  • The temperature coefficient changes voltage on hot and cold days, so a string that looks safe at 25°C can exceed the inverter limit on a cold morning.

Datasheet and manual

Check it fits your design

Specifications change with revisions and firmware. Confirm the exact model with the manufacturer, then check the battery voltage, charge current, MPPT window and communication protocol against the rest of the system.

More specifications

Record last updated 5 November 2026. Confirm the model revision with the manufacturer before ordering.

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