Tunto multicrystalline solar panels undergoes strict materials selection. Some important factors related to human health such as the content of formaldehyde & lead and the damage of chemical sustenances must be considered. 2.
Product quality is guaranteed because of the rigorous quality control process that effectively eliminates defects. 3.
As a testament to the great quality, the product is backed by many international quality certificates on a basis of our various performance test and quality assurance test. 4.
Our customers think highly of this product. They say even the negligible small parts are high quality. For example, the slideway runs smoothly without the need for any lubricant. 5.
This piece of furniture is able to strike a balance between beauty, style, and functionality of any space. -said one of our customers.
|Technical parameters of 20W mono solar modules|
|Origin (country) ||China|
|Nominal power Pmax[W] ||20|
|Tolerance [%] ||±3%|
|Kind of cell( mono,poly) ||Mono|
|Cells per Module ||36(4*9)|
|Conversion Efficiency ||18.5~19％|
|shape of cell "x" mm × mm ||78*39|
|Voltage Mpp Vmp[V] ||18V|
|Current Mpp Imp[A] ||1.11A|
|Volt Open circuit Voc[V] ||21.42V|
|Short out current Mpp Isc[A] ||1.24A|
|Max system Volt [V] ||1000V|
|Length [mm] ||420|
|Width [mm] ||350|
|Thickness(without box) [mm] ||25|
|kind of Frame(l,c.alu,none…) ||Alu|
|Guarantee on the whole product [years]||5 years|
|Kind of glass and its thickness [mm] ||AFG 3.2mm|
|Temperature Coefficient Current Isc mA/℃ ||+0.08%℃|
|Temperature Coefficient Voltage Voc mV/℃ ||-0.37%℃|
|Temperature Coefficient Power Pmax/℃ ||-0.44%℃|
Guangzhou Tunto Green Power Technology Co., Ltd. has earned a high reputation for its high quality polycrystalline solar panel . 2.
The technology level for monocrystalline solar panel is high enough. 3.
We constantly collaborate with our clients to ensure that our endeavors are strategically implemented to achieve economically sustainable development. We operate ethically and lead with integrity, earning the trust of our employees, customers, suppliers, investors, and the communities where we live and work. Looking to the future, our company will continue to strive for superior performance of both product and service through innovation, uniqueness, and excellence.