Trina 665W vs Jinko 620W vs LONGi 650W: A Datasheet Comparison
Trina 665W vs Jinko 620W vs LONGi 650W: A Datasheet Comparison
These three modules show up in the same tender shortlists, but they are not interchangeable. One is a large-format bifacial module, one is a lighter bifacial module, and one is a high-efficiency monofacial module. The table below uses the manufacturer datasheets we supply, namely Trina TSM-DEG21C.20, Jinko Tiger Neo 66HL4M-BDV and LONGi Hi-MO X10 LR7-72HVH, so the comparison is like for like.
Side-by-side numbers
| Parameter | Trina 665 W | Jinko 620 W | LONGi 650 W |
|---|---|---|---|
| Model | TSM-DEG21C.20 | 66HL4M-BDV | LR7-72HVH-650M |
| Rated power | 665 W | 620 W | 650 W |
| Module efficiency | 21.4 percent | 23.14 percent | 24.1 percent |
| Power density | approximately 214 W per square metre | approximately 229 W per square metre | approximately 241 W per square metre |
| Vmp and Imp | 38.3 V and 17.39 A | 40.88 V and 15.29 A | 44.56 V and 14.59 A |
| Voc and Isc | 46.1 V and 18.50 A | 49.28 V and 16.14 A | 53.90 V and 15.29 A |
| Dimensions | 2384 by 1303 by 35 mm | 2382 by 1134 by 30 mm | 2382 by 1134 by 30 mm |
| Weight | 38.7 kg | 32.4 kg | 28.5 kg |
| Glass | 2.0 mm and 2.0 mm dual glass | 2.0 mm and 2.0 mm dual glass | 3.2 mm single glass |
| Bifacial | Yes, 80 percent plus or minus 10 percentage points | Yes | No |
| Product and power warranty | 12 and 30 years | 12 and 30 years | 15 and 30 years |
| Pmax temperature coefficient | -0.34 percent per degree C | -0.29 percent per degree C | Not stated on the page 2 table we hold |
| Pieces per 40HQ from the datasheet | 594 | 720 | 720 |
Figures are from the datasheet revisions supplied with each product page. Power density is calculated as rated power divided by module area, and is not a datasheet value. Confirm the current revision before issuing a purchase order.
What the numbers mean in practice
If roof area is the constraint
The LONGi 650 W is the most power-dense of the three at approximately 241 W per square metre, and its 28.5 kg weight is the easiest to handle. The trade-off is that it is monofacial, so there is no rear-side gain. It makes most sense on membrane roofs, low-albedo surfaces or residential roofs where bifacial gain would be small.
If rear-side gain matters
The Trina 665 W and Jinko 620 W are both bifacial dual-glass modules. On white gravel, a reflective roof membrane or a raised ground-mount, the rear side can add roughly 5 to 25 percent output depending on albedo and mounting height. The Jinko is 6.3 kg lighter and about 15 W per square metre denser, which usually makes it easier to handle on commercial roofs.
If you are optimising container freight
The Jinko and LONGi both load 720 pieces per 40HQ, against 594 for the Trina. At 620 W and 650 W respectively, that is approximately 446 kW and 468 kW per container, against approximately 416 kW for the Trina. The Trina frame is larger and the module weighs 38.7 kg, which is the reason for the lower count.
If warranty length is a tender requirement
The LONGi carries a 15-year product warranty, one of the longest in this group, while Trina and Jinko are 12 years. All three offer 30-year power warranties, but the degradation curves differ, so compare the guaranteed percentage at year 30 rather than the headline years alone.
How to choose without overpaying
- Start with the roof or land constraint, not the brand. Area-limited projects should compare watts per square metre; weight-limited roofs should compare kg per module.
- Decide whether bifacial gain is real for your site. If the surface is dark or the modules sit flat, monofacial is often the better economic choice.
- Check the string design. The three modules have different Vmp and Voc, so the number of modules per string and the inverter MPPT window will differ.
- Compare landed cost per watt, including freight. A module with fewer pieces per container can lose its price advantage once freight is allocated.
What we can send you
For any of these models we can provide the current datasheet, the IEC or UL certificate pack, flash-test data on request and a container loading plan for your destination port. We do not publish prices because they move with cell and freight costs. Send the model, quantity and Incoterm and we will quote against current stock.
Trina 665 W product page | Jinko 620 W | LONGi 650 W | Request a quote