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Talesun TM8G60M/620W
Talesun Brand review

TM8G60M/620W

620 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, heavy for its output

Rank 3,837 of 14,005
Compare panels Datasheet PDF
Power (Wp)
620
Typical for its class
Efficiency (%)
21.90
Weak · bottom 5%
Density (Wp/m²)
219.1
Weak · bottom 5%
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
34.9
Weak · 2.2 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Talesun BIPRO™ TM8G60M (120-cell) is a glass-to-glass bifacial module engineered for maximum yield from every square meter of installation. The use of N-type TOPCon cells and bifacial construction effectively utilizes reflected light from the ground - particularly effective on light-colored roofs, membranes, and ground-mounted installations. Thanks to the half-cut technology with a dense busbar layout, the modules perform better under partial shading and in low-light conditions, facilitating design in challenging locations.

Amidst many competitive panels, this product stands out due to its focus on long-term reliability - limiting LID and LeTID degradation and featuring enhanced resistance to PID - ensuring predictable energy production for years to come. This makes it an excellent choice for utility-scale PV farms, large commercial rooftops, and investors focused on long-term energy cost savings, not just peak power output.

Ranking

1,086 panels in the segment TOPCon 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.90% 22.80% Weak · bottom 5% 6,783
Power density 219.1 227.7 Weak · bottom 5% 6,743
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 56.3 53.1 Weak · bottom 5% 10,554
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Commercial, utility-scale and shaded-installations.

Not ideal for

Weight-limited structures, roofs where every square metre has to count and tight roof space.

Watch-outs
56.3 kg per kWp

Bottom 5% of the TOPCon 600-650 W segment, against a median of 53.1. Ranked 10,554th in the whole database.

219.1 watts per square metre

Bottom 5% of the TOPCon 600-650 W segment, against a median of 227.7. Ranked 6,743rd in the whole database.

21.90% module efficiency

Bottom 5% of the TOPCon 600-650 W segment, against a median of 22.80%. Ranked 6,783rd in the whole database.

Notes from the database
  • Module efficiency of 21.9% is 0.9pp below average for TOPCon 600-650W panels (median: 22.8%)
  • At 219.1 W/m², this panel generates 8.6 W/m² less per unit area than TOPCon 600-650W median (227.7 W/m²)
  • Temperature coefficient of -0.29%/°C matches the TOPCon 600-650W median
  • At 34.9 kg (2.2 kg above TOPCon 600-650W median of 32.7 kg), requires checking roof load capacity
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 620 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.90 % Weak Segment median 22.80%
Vmpp · Impp 36.20 V · 17.13 A Operating point at max power
Voc · Isc 43.20 V · 18.18 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2172×1303×33 mm · 2.83 m² of roof
Weight 34.9 kg Weak Weak · 2.2 kg above median
Cells 120 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.240 · 0.043 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 542 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Talesun in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 620 Wp appear here. The rest cover the whole series.

Talesun Solar Linear Warranty Talesun Solar Linear Warranty Whole series

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.290 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Talesun TM8G60M/620W 620 W 21.90% -0.290 34.9 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +30 W, lighter, +3.3 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +3.1 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +50 W, lighter, +2.9 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +50 W, lighter, +2.9 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +2.9 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +50 W, cooler, +2.9 pp
TP8F60M-585W 585 W 20.70% -0.340 31.5 kg Hotter, -1.2 pp, -5 yr warranty
TP8F60M-590W 590 W 20.80% -0.340 31.5 kg Hotter, -1.1 pp, -5 yr warranty
TP8F60M-595W 595 W 21.00% -0.340 31.5 kg Hotter, -0.9 pp, -5 yr warranty
TP8F60M-600W 600 W 21.20% -0.340 31.5 kg Hotter, -0.7 pp, -5 yr warranty
TP8F60M-605W 605 W 21.40% -0.340 31.5 kg Hotter, lighter, -5 yr warranty
GKA210N120 680 W 24.03% -0.340 28.0 kg +60 W, lighter, +2.1 pp
GKA210N120-675 675 W 23.85% -0.340 28.0 kg +55 W, lighter, +2.0 pp
QN-670HJT-01 670 W 23.70% -0.240 35.5 kg +50 W, cooler, +1.8 pp
GKA210N120-670 670 W 23.67% -0.340 28.0 kg Hotter, lighter, +1.8 pp
QN-665HJT-01 665 W 23.50% -0.240 35.5 kg +45 W, cooler, +1.6 pp

Found 497 panels of the same or similar size to this one, within ±10 mm. See them here Found 502 panels of the same or similar size to this one, within ±25 mm. See them here Found 502 panels of the same or similar size to this one, within ±50 mm. See them here Found 506 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the maximum power output of the Talesun BIPRO TM8G60M (120-cell) panels?
The BIPRO TM8G60M series reaches up to 640 Wp maximum power output, with module efficiency of around 22.6%. This is achieved through 120 N-type TOPCon cells in a half-cut configuration with a dense busbar layout, which reduces current losses and improves energy yield per square meter compared to older PERC modules of similar dimensions.
How does the TOPCon technology in this series differ from standard PERC panels?
N-type TOPCon cells have a lower first-year degradation rate and slower power loss over subsequent years than conventional P-type PERC cells. They also handle high temperatures better and are less prone to LID and LeTID degradation, so the BIPRO TM8G60M module maintains higher energy production over the long term, especially in hot summer climates.
Are BIPRO TM8G60M panels suitable for ground-mount installations or flat roofs with a light-colored surface?
Yes, this is one of the main use cases for the series. Thanks to the bifacial glass-glass construction, the panel captures light reflected off the ground from its rear side, boosting total energy yield. The effect is strongest over light surfaces - white gravel, roofing membranes, or snow-covered ground - making it well suited to PV farms and large commercial rooftops.
What warranty does the Talesun BIPRO TM8G60M series come with, and what does it cover?
The manufacturer provides a 12-year product warranty covering material and workmanship defects, plus a 30-year power output warranty. This means guaranteed, gradually declining energy production over three decades - a longer period than the standard 25-year power warranties typically offered on older-generation PERC panels.
Do BIPRO TM8G60M modules perform well under partial shading, such as from a chimney or tree?
Yes, the half-cut cell design with a dense busbar layout splits cells into smaller segments, so shading part of the panel reduces overall module output less than it would with traditional full-cell panels. This makes it easier to design installations on sites with partial shade, though fully avoiding obstructions is still recommended for maximum yield.
Is Talesun a reliable manufacturer, and is the BIPRO TM8G60M series worth investing in?
Talesun is a Chinese manufacturer classified as Tier 1 by Bloomberg NEF, reflecting financial stability and long-standing experience in large-scale PV module production. The BIPRO TM8G60M series has not been discontinued and is currently actively offered, providing assurance of continued warranty support and spare parts availability going forward.
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