I bought solar power and my mistake gave many chances for solar power until the exchange period is over, this solar battery pack does not work, I only got voltage without watts , I hope the manufacturer reads this and sends me a replacement!//Updates I would like to thank the company's customer service team for responding quickly to any issues, which means the company wants to improve their products and quality of service. why from a star to "5", they solve and respond quickly, they send back the faulty solar and send me another one for free to confirm the goods are good quality and what I had with a defect , came accidentally, this is a good experiment for me and if I want to replace other solar panels, of course I will choose this company and the reason here is obvious, the quality of service, thank you again for the quality customer service and thank you Revain for your partners πΉπΉπΉ