Jinko vs LONGi Solar Panels: the 670 W Modules Compared Row by Row
Jinko or LONGi is the question most panel buyers reach once the wattage is settled, so this page holds the wattage still. It sets the Jinko JKM670N-66QL6-BDV-F2 beside the LONGi Hi-MO 9 LR8-66HYD at the same 670 W, and reads both from the product records of the two stores we run. On the headline rows the two are level: the same rated power, the same 24.8 % module efficiency, the same 2382×1134×30 mm frame and the same warranty terms. What separates them is further down the sheet — string voltage, weight, the temperature range each record states and the mechanical-load figures only one of them publishes.
Specifications side by side
Every figure in this table is read from the product’s own record — the same rows each product page shows.
| Specification | Jinko N-Type Bifacial Solar Panel 670 W (66QL6-BDV-F2) | LONGi Hi-MO 9 LR8-66HYD 670W |
|---|---|---|
| Maximum Power (Pmax) | 670 W | 670 W |
| Module Efficiency | 24.8 % | 24.8 % |
| Open Circuit Voltage (Voc) | 50.98 V | 49.42 V |
| Temperature Coefficient of Pmax | -0.26 % | -0.26 % |
| Voltage at Maximum Power (Vmpp) | 43.09 V | 40.58 V |
| Current at Maximum Power (Impp) | 15.55 A | 15.61 A |
| Short Circuit Current (Isc) | 16.22 A | 16.3 A |
| Maximum Series Fuse Rating | 4 A | 35 A |
| Temperature Coefficient of Isc | 0.046 % | 0.05 % |
| Temperature Coefficient of Voc | -0.24 % | -0.2 % |
| Maximum System Voltage | 1500 V | 1500 V |
| Dimensions (W×H×D) | 2382×1134×30 mm | 2382×1134×30 mm |
| Weight | 32.5 kg | 33.5 kg |
| Frame Material | Anodized Aluminium Alloy | Weather-resistant anodized aluminum frame |
| Operating Temperature | -40 ~ 70 °C | -40 ~ 85 °C |
| Warranty | 12 Years Product, 30 Years Performance | 12 Years Product, 30 Years Performance |
| Price | AED 416 | AED 416 |
Power and efficiency: the same on both records
The Jinko 66QL6-BDV-F2 is rated 670 W at a module efficiency of 24.8 %. The LONGi Hi-MO 9 LR8-66HYD is rated 670 W at a module efficiency of 24.8 %. Both records give a temperature coefficient of Pmax of -0.26 %/°C, and both frames measure 2382×1134×30 mm, so a roof or a ground-mount table holds the same number of either. Nothing in the first four rows of the table favours one brand.
Voltage and current: where the strings differ
The Jinko 66QL6-BDV-F2 has a Voc of 50.98 V and a Vmpp of 43.09 V, with an Impp of 15.55 A and an Isc of 16.22 A. The LONGi Hi-MO 9 LR8-66HYD has a Voc of 49.42 V and a Vmpp of 40.58 V, with an Impp of 15.61 A and an Isc of 16.30 A. Both are rated for a 1500 V system. The Jinko's higher module voltage means a string reaches an inverter's DC limit with fewer panels; the LONGi's lower voltage allows a longer string under the same limit. Size the string from the inverter's own input figures.
Weight, glass and frame
The Jinko 66QL6-BDV-F2 weighs 32.5 kg and its record names an anodized aluminium alloy frame and an IP68 junction box. The LONGi Hi-MO 9 LR8-66HYD weighs 33.5 kg, with dual glass described as weather-resistant semi-tempered glass and a weather-resistant anodized aluminium frame. The LONGi record also states static loading of 5400 Pa on the front and 2400 Pa on the rear; the Jinko record we hold states no load figure, so none is given here.
Temperature range and bifaciality
The Jinko 66QL6-BDV-F2 record states an operating temperature of -40 to +70 °C and bifaciality coefficients of 98±5 % for Voc and 85±5 % for Isc and Pmax. The LONGi Hi-MO 9 LR8-66HYD record states an operating temperature of -40 to +85 °C and, in the record we hold, no bifaciality figure. Temperature coefficients of Voc are -0.24 %/°C on the Jinko and -0.200 %/°C on the LONGi.
Which one for which project
Where every kilogram on the roof structure is counted, the Jinko 66QL6-BDV-F2 is the lighter panel. Where the inverter's DC window is tight and a longer string is wanted, the LONGi Hi-MO 9 LR8-66HYD has the lower Voc. Where a tender asks for a stated mechanical-load rating or an upper operating limit above +70 °C, the LONGi record carries both. Warranty does not separate them: each record states 12 years on the product and 30 years on performance.
The models in this comparison
Winner
Level on power, efficiency and warranty; the Jinko 66QL6-BDV-F2 where weight per panel matters, the LONGi Hi-MO 9 LR8-66HYD where a lower string voltage or a stated load rating is the requirement.
Conclusion
At 670 W these two panels are closer than the brand debate suggests: equal power, equal efficiency, equal frame, equal warranty. Choose on the rows that differ. The Jinko 66QL6-BDV-F2 is the lighter module and its record states bifaciality coefficients; the LONGi Hi-MO 9 LR8-66HYD runs at a lower string voltage, states a wider operating range and publishes static-load ratings. Both are priced at USD 0.169 per watt of rated power on our stores, so price does not decide it.