Power supply is insufficient
If your home circuit is overloaded, it will lead to insufficient power supply. In this case, when you turn on more than one device, the light will flash or be intermittent.
Line aging
Aging lines can also cause problems. After long-term use, connectors, plugs and other components in the line are easy to be damaged or loosened, and it is more likely to fail when running under high load.
Equipment failure
If your sewing machine or lamp itself breaks down, they may also cause power supply problems and cause other equipment (such as lamps) to lose stability.
Check the power supply
First, check whether there are too many devices connected to the same socket. If yes, please unplug some devices to reduce the load and ensure that each device can work normally.
Replace socket
If the socket is found to be aging or loose, please consider replacing it with a new socket to improve safety and reliability.
Maintenance/replacement of equipment
If there is something wrong with the sewing machine or the lamp itself, the equipment needs to be repaired or replaced accordingly.