It depends on the value of the sample. Generally, LONGSUN SOLARELECTRIC CO.,LTD will send free solar energy inverter sample but the freight is charged by you. We always work with the most reliable courier company to deliver samples at an affordable price. Considering the long-term relationship development, we generally send free sample to customers with our good faith.
LONGSUN SOLARELECTRIC CO.,LTD Longsun Solar Panel has established a loyal customer base. polycrystalline solar panel series manufactured by LONGSUN SOLARELECTRIC CO.,LTD Longsun Solar Panel include multiple types. And the products shown below belong to this type. The design of Longsun solar energy inverter has covered various factors. They involve the principle of structural mechanics, ergonomics (referring to human's physiological structure development). It has a long service life and secures a high second-hand value. ) The product embraces modernization and folk classic design which makes this product feature uniqueness and full of cultural implication. Its low voltage-temperature coefficient allows better output under high temperature.
Longsun insists on the talent development idea of 'people oriented'. Inquire!