The temperature of the photovoltaic environment is very high in the summer, even as high as 90 degrees Celsius, while the temperature in some areas is very low in the winter, reaching minus 30 to 40 degrees Celsius. Photovoltaic cables require low temperature resistance of 40 degrees Celsius, high temperature resistance of 125 degrees Celsius, basically can adapt to various extreme weather on the earth; Ultraviolet radiation causes the cable insulation sheath to crack, solar cable insulation sheath is made of cross-linked polyolefin material, so that the photovoltaic cable service life of more than 25 years. Taking into account the cable's weather resistance and UV resistance linearity, the cable produced by Yonghao solves these problems in use, and the quality of TUV solar cable products has passed the authoritative certification, and the quality is guaranteed.