Power adapter problem

Hi! Recently my light strip stopped working and i thought is completely defective but i had another light strip and i tried with it and it’s working. To send it back to China will cost me alot so i decided to buy another power adapter but i can’t find one. Where i can buy one?

Did you buy it with warranty? If there is any problem in the product, you will have to go to the seller for repairing or product replacement.