Hello Owen Parsons,
Thank you for writing in.
So sorry that we cannot ensure which product you are referring to.
Could you please tell us your order ID or the link of the product?
It is better that you can tell us more details of your operation, such as the input voltage/current, the load, the wiring, the working environment.
If you can, we sincerely hope that you can send some images to let us check the problem details.
With your help, we can find a solution more quickly.
You can send the information to us by email(service at droking dot com).
Looking forward to hearing from you.
Best regards