How to use
After the transmitting coil is energized, put the receiving lamp bead into the sensing range of the transmitting coil to light up, and the lamp bead is lit by electromagnetic induction without batteries and magnets.

Attention
Metal will interfere with the transmitting coil. The metal model requires buyers to test the interference situation after purchasing the transmitting coil. Different metal materials, different metal contents, and different angles and positions of the metal in the transmitting coil will interfere with the transmitting coil, but the specific Interference requires actual testing. (Other materials are fine)

How many ways are there to light up the lamp beads?
1: Mobile phone wireless charger.
2: A specific coil.
Putting the lamp bead on the wireless charger of the mobile phone will only flicker. If you want to keep it on, you can place the lamp bead between the mobile phone and the wireless charger.