Chosen Solution
I accidentally connected a 120v christmas tree light (from US) to 240v and it worked well for a day and suddenly stopped working. Is there any way to fix it? Thankyou in advance. [somewhat similar to this]
no, you burnt the LED’s on the lights. Don’t have any hopes for that being repaired. however it could just be a blown fuse but I find that extremely highly unlikely because of the high power current going through the lights.