美国采购需求：电子、照明

I recently purchased some wall lamps from your company, and I'm reaching out because I've encountered an issue with one of them. The lamp seems to be malfunctioning, and I suspect that the problem lies with the battery pack. This is quite inconvenient, as I've had the lamp for a short period and was really looking forward to using it. Could you please assist me in resolving this matter? I would appreciate any guidance on how to troubleshoot the battery pack or if you can provide a replacement. It would be great to have this sorted out so I can fully enjoy the benefits of your products. Thanks in advance for your help!