--- title: "Talesun TM3G66M-610 610W Solar Panel - Specs & Review | ComparePV" description: "Talesun TM3G66M-610 610W solar panel. Specs: 22.60% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/talesun-tm3g66m-610" updated: 2026-09-11 --- # Talesun TM3G66M-610 Middle of its segment, heavy for its output 359 panels in the segment N-type 600-650 W ## Identity - **Manufacturer:** Talesun - **Model:** TM3G66M-610 - **Series:** BIPRO TM3G66M - **Rated power:** 610 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 600-650 W (359 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 610 W | 625 W | Weak - bottom 17% | | | Module efficiency | 22.60% | 22.77% | Typical | 3,658 | | Power density | 225.8 | 227.7 | Typical | 3,729 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 33.7 kg | 32.5 kg | Weak - bottom 17% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.60% | 22.77% | Typical | 3,658 | | Power density | 225.8 | 227.7 | Typical | 3,729 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 55.2 | 52.7 | Weak - bottom 17% | 9,683 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **55.2 kg per kWp** - Bottom 17% of the N-type 600-650 W segment, against a median of 52.7. - **Best for:** Utility-scale, commercial, shaded-installations and hot-climate. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 610 W - **Efficiency:** 22.60 % - **Voltage at Pmax (Vmp):** 40.80 V - **Current at Pmax (Imp):** 14.96 A - **Open-circuit voltage (Voc):** 49.00 V - **Short-circuit current (Isc):** 15.86 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.043 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 132 - **Bifacial:** yes ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 33.7 kg - **Area:** 2.70 m2 - **Power density:** 225.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3658 of 14005 | | Power density | 3729 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 9683 of 14005 | | Warranty | 21 of 14005 | ## About this series Talesun BIPRO TM3G66M photovoltaic panels are an advanced solution based on **bifacial** technology, which allows for the generation of additional energy from radiation reflected off the ground. The use of a **double glass** design makes these modules exceptionally resistant to extreme weather conditions, micro-cracks, and PID degradation processes. Thanks to the use of **half-cut cells and 10BB technology**, this series effectively minimizes power losses resulting from partial shading and reduces internal resistance, which directly translates into higher efficiency of the entire system. This solves the key problem of limited installation space, offering a significantly higher energy yield from the same area compared to monofacial counterparts. This series is primarily dedicated to professional photovoltaic farms and large commercial installations, where lowering the LCOE is crucial. What distinguishes it from the competition is its **above-average mechanical durability** and the stability of electrical parameters at high temperatures, making it a safe investment for many years. Choosing this series is a guarantee of maximizing profits by utilizing the albedo effect, especially on bright surfaces or tracking systems. The use of M10 standard silicon wafers further optimizes logistics and installation costs, providing a real economic advantage for contractors and investors. ## Notable figures - At 22.6% efficiency, this panel is on par with typical \*\*N-type 600-650W\*\* modules - Power density of 225.8 W/m² matches the \*\*N-type 600-650W\*\* median - Temperature coefficient of -0.29%/°C matches the \*\*N-type 600-650W\*\* median - Weight of 33.7 kg is 1.2 kg above \*\*N-type 600-650W\*\* median (32.5 kg) - verify structural support - Bifaciality factor of 80% can add 4-12% extra yield with reflective mounting surface ## Questions ### How does the Talesun BIPRO TM3G66M panel differ from standard monofacial panels? The key difference is bifacial technology – the module generates power from both sides, capturing reflected light (albedo) from the ground surface. This results in a higher energy yield from the same roof or ground area compared to conventional monofacial panels, especially on light-colored surfaces, gravel, or with tracker systems. The double glass construction also protects the cells from moisture and PID degradation. ### What warranty comes with the Talesun BIPRO TM3G66M panels? The manufacturer provides a 12-year product warranty and a 30-year linear power output warranty. This means the panels maintain a guaranteed production level throughout their service life, with annual power degradation limited to a minimal rate. As a Tier 1 manufacturer, Talesun offers financial stability that supports fulfillment of long-term service obligations. ### Are the Talesun BIPRO TM3G66M panels suitable for large solar farms? Yes, the BIPRO TM3G66M series is primarily designed for professional solar farms and large commercial installations. With power output up to 630 Wp, bifacial technology, and N-type half-cut cells, these panels help lower the LCOE by delivering higher energy yield from fewer modules, reducing costs for mounting structures and cabling at scale. ### What is N-type cell technology in the TM3G66M panels, and is it worth choosing? N-type cells have lower light-induced degradation (LID) and better performance at high temperatures and low light compared to older P-type technology. Combined with the half-cut cell design and 10BB busbar layout, they minimize power loss from partial shading and reduce internal resistance, resulting in higher and more stable energy production throughout the system's lifetime. ### Are Talesun BIPRO TM3G66M bifacial panels suitable for roofs, or only ground-mount systems? While the full potential of bifacial technology is realized with ground-mount or tracker installations over a light-reflective surface, these panels can also be used on flat roofs with adequate clearance below the module. The double glass construction provides high mechanical rigidity and durability, making it suitable for commercial rooftop installations with ballasted mounting systems. ### Is the Talesun BIPRO TM3G66M series still available for purchase? Yes, the BIPRO TM3G66M series remains in the manufacturer's active lineup and has not been discontinued. As a Tier 1 manufacturer based in China, Talesun continues to supply this bifacial module line for both large commercial installations and utility-scale solar farms, making it a safe long-term choice in terms of parts availability and warranty support. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/610-630-BIPRO_TM3G66M_16BB_Silver_12_20250515_EN-1-b8ac8fb281d0.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +40 W, lighter, +2.6 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +35 W, lighter, +2.4 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | -50 W, lighter, +2.2 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +30 W, lighter, +2.2 pp | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | Cooler, lighter, +2.0 pp | | [Longi Solar LR8-66HVD-660M](https://comparepv.com/panel/longi-lr8-66hvd-660m) | 660 W | +50 W, cooler, +1.8 pp | | [Talesun TM3G66M-600](https://comparepv.com/panel/talesun-tm3g66m-600) | 600 W | -10 W, -0.4 pp | | [Talesun TM3G66M-605](https://comparepv.com/panel/talesun-tm3g66m-605) | 605 W | -0.2 pp | | [Talesun TM9G72M-615W](https://comparepv.com/panel/talesun-tm9g72m-615w) | 615 W | Very close match | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +70 W, lighter, +2.6 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +65 W, lighter, +2.4 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +90 W, cooler, +2.4 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +85 W, cooler, +2.3 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +60 W, lighter, +2.2 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +60 W, lighter, +2.2 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +60 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/talesun-tm3g66m-610 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.