How can the electronic light on the security door handle be sold

It should be the static electricity generated, it may also be where to contact the power supply, this has to check the circuit near the door at home, if it is static electricity, it doesn't matter, just take a metal and touch the surface of the door back and forth, otherwise you can also tie a chain on the door to the ground and contact, like a car holding the chain, I hope it can help you, and I hope to adopt it.

1.Iron anti-theft door handle: win by price, the market is more common is the iron anti-theft door, the price is between 700 yuan and 1200 yuan, due to different models and styles, there is a slight float. >>>More

It can be opened, and it is called abnormal if it cannot be opened.

The handles on the anti-theft doors are matching, and they cannot be changed casually, mainly because many handles are not universal.

From the inside of the security door, you can see that there are two screws in the position of the lock, open it with a screwdriver, you can remove the door handle inside, and you don't need to move outside, at this time, you can see that there is an iron pin 10cm long, and you can take the pin off it by hand, which is very simple. Then it is to change the iron pin from the original 10cm to make it yourself, you can go to the hardware store, and you can cut it off for a dollar). After the size is changed, you can put the iron pin back on, remember to put the iron pin on the doorknob first, and then install the doorknob, and put on the screws. >>>More