These solar panels are the most advanced, sturdy, durable, and efficient panels. They are worth paying every penny. What I bought is a residential off-grid solar system, and the system works very well during use. I purchased all the components including modules, batteries, brackets, inverters, and so on from Sunpal. So far, I am very satisfied with this solar system and accessories. So far, my solar panels have not had any problems. Good product, highly recommended.
These are a little on the heavy side, however that is probably because they are very sturdy and very well built. They provide continuous satisfactory output even with overcast days. Fast shipping and professional service, the box arrived in good condition. There were no smudges on the surface, I'm very happy with the quality.
Thanks to Sunpal's professional services and Cathy's enthusiastic help. You are very kind and professional to arrange all the processes like including system design, quotation, packaging, transportation arrangements, logistics information update, etc. I'm very satisfied with the package, the goods' quality, I will recommend you to my friends.
I ordered 2*40 feeds solar panels 1270 PCs and they arrived in good condition. Once tested I was happy with the output that was higher than another brand panel that I bought another solar module factory in China. I am in a northern state of America and the sun is always less than directly overhead. These panels when connected 2 in series to a inverter are outputting near their rating for about 3+ hours per day and are above 60% of their rated output for more than 6 hours per day. Because I was happy with the first order, now Sunpal is the only solar panel supplier, I will be ordering additional panels from them.
