Uploaded November 2022 | Updated September 2026, 1 hour ago
This device generates electricity using potential energy conversion method.
Firecrackers can be ignite itself with this device.
It can be used as an educational purpose for science subjects related to potential energy conversion.
It can also be used as an intrusion alarm or a theft alarm.
This device generates electricity using potential energy conversion method.
Firecrackers can be ignite itself with this device.
It can be used as an educational purpose for science subjects related to potential energy conversion.
It can also be used as an intrusion alarm or a theft alarm.



![12V car bulb connect to 220V directly
This is series capacitor current limit circuit. Widely used in transformerless power supply.
However, it is dangerous because of the high potential difference with the ground.
In this kind of circuit, may damage the bulb by over current flows due to harmonics. (Current : 2 × π × f × C × V [A] ) 12V car bulb connect to 220V directly](https://i.ytimg.com/vi/4HI3JEzjyu8/mqdefault.jpg)






