Last time I sent a maglev of colored lights, many people asked me how the lights are bright. I had to explain very awkwardly. "Actually, I put a battery in it." 
Now it is finally decent to announce that this lantern is already wirelessly powered.
Step 1: Wireless power supply module
Wireless power supply module
Speaking of the wireless power supply module, it is not so mysterious. When everyone was in high school, they should have experimented with electromagnetic coupling, and the transformer is the principle.
The same set of coils, one of which, if an alternating current is applied, produces an alternating magnetic field that also produces current in the other set of coils.
If you feel that the power supply module is not working well, you can rewind a set of coils yourself and increase the transmission distance by a little more rounding.
When I was young, there was a radio tower near the home. Some of the nearby residents will pick up a coil at home and can light the bulb for lighting. It is really a master!
Step 2: Continue to print the lamp holder
Halogen lamp holder
Since the coil is to be embedded in the base, the base is a little bigger than the last time.
Step 3: Successful suspension
Wireless powered magnetic levitation bulb
The end result is the top GIF. It should be noted that this time, a very simple solution is used: a wireless power supply module is superimposed on the original magnetic levitation, that is, the two systems are simply assembled together.
A truly high-performance magnetic levitation + wireless power supply should be a superposition of high-frequency alternating electromagnetic fields for wireless power generation on top of the four large coils used for balancing. The same line can be used similar to phones and broadband. After this, I will continue to do it later. 
Three Phase Isolation Transformer
Introduction:
Three phase dry type isolation transformer is a new generation of energy-saving power transformer developed by our factory from 300VA to 1600KVA on the basis of international similar products and in accordance with international and national standards such as IEC439 and GB5226. The winding adopts hole array winding. Vacuum impregnation is adopted for the transformer to make the insulation level of the transformer reach F or H, and the product performance reaches the advanced level at home and abroad. SG series three-phase dry type isolation transformers are widely used in circuits with AC 50Hz to 60Hz and voltage lower than 2000V. All these can be customized according to the different requirements of the end user.
Normal service conditions:
1. The altitude shall not exceed 2500M
2. Ambient medium temperature: ≥ - 25 ℃, ≤+40 ℃
3. Current and voltage waveforms are similar to sine waves.
4. No rain and snow erosion, no obvious shaking and impact vibration at the installation site.
5. No explosion hazard, gas and conductive dust.
Three Phase Isolation Transformer,Industry Auto Transformer,Transformer 220V To 380V,10Kva Transformer 3 Phase
Henan New Electric Power Co.,Ltd. , https://www.newelectricpower.com