Yes. NANJING KSUNSOLAR TECHNOLOGY CO., LTD. will arrange a sample charge refund once an order is placed. Generally, we will set up a refund mechanism for customers who would like to place an order with a product quantity higher than the minimum order quantity set by us. The samples are only provided for free in the case of customers having a desire for further cooperation. KSUN Solar Products guarantees offering samples with the same quality as the ordinary product, which has a high pass rate. Moreover, we offer discounts for large orders to maximize mutual benefits.

Nanjing KSUN Solar Technology Co., Ltd. has key competence in the development and manufacture of portable solar bank. We have been committing to this industry for many years. The photovoltaic cell polycrystalline solar panel series is one of the main products of KSUN Solar Products. hybrid solar solutions has the various excellent characteristics, which is increasingly and widely applied to the domestic hybrid solar system industry. Having been qualified with quality system certification, flexible solar panel meets the quality standards.

With the emerging of economic, we put forward the concept of photovoltaic cell polycrystalline solar panel to be more concentrated on this field. Inquire!