Where can I buy the chip in the hotel number light if it is broken?

The hardware store inquired about the relevant information of the hotel number light, and learned that the internal chip of the hotel number light was broken, so you can go to the hardware store to buy it, which is affordable and has quality assurance. A hardware store specializes in saws, drills, screws, screwdrivers, faucets, locks, pipes, pumps, wires and so on.