It only took me about 30 minutes to put together. Make sure you pay attention to the polarity of the capacitors and LEDs when you install them. Also, there are 2 different types of MOSFETs in the kit and the PCB will be labeled with where each one goes. The pictures in the BangGood listing are pretty misleading as there is no electricity shooting out of it once it’s built as shown in the picture. I tried it from 3 volts all the way to 24 volts and, while things do change at different voltages, there’s still no electrical light show like they make you believe. I also wanted to get this to help me practice soldering and, since this only has a few pieces in it, it is a pretty good kit to start with. I made a full video about it here: https://www.youtube.com/watch?v=_eMg0dcVrHg

It only took me about 30 minutes to put together. Make sure you pay attention to the polarity of the capacitors and LEDs when you install them. Also, there are 2 different types of MOSFETs in the kit and the PCB will be labeled with where each one goes. The pictures in the BangGood listing are pretty misleading as there is no electricity shooting out of it once it’s built as shown in the picture. I tried it from 3 volts all the way to 24 volts and, while things do change at different voltages, there’s still no electrical light show like they make you believe. I also wanted to get this to help me practice soldering and, since this only has a few pieces in it, it is a pretty good kit to start with. I made a full video about it here: https://www.youtube.com/watch?v=_eMg0dcVrHg

It only took me about 30 minutes to put together. Make sure you pay attention to the polarity of the capacitors and LEDs when you install them. Also, there are 2 different types of MOSFETs in the kit and the PCB will be labeled with where each one goes. The pictures in the BangGood listing are pretty misleading as there is no electricity shooting out of it once it’s built as shown in the picture. I tried it from 3 volts all the way to 24 volts and, while things do change at different voltages, there’s still no electrical light show like they make you believe. I also wanted to get this to help me practice soldering and, since this only has a few pieces in it, it is a pretty good kit to start with. I made a full video about it here: https://www.youtube.com/watch?v=_eMg0dcVrHg

Works as stated. The blue spark is very tiny but the luminescent bulb lights up spectacularly. You can present it like a nice trick to the kids. I have added a thermo-silicone paste between the transistors and their heat sinks. And finally I put a small fan from an old video-card - no worry to burn out the transistors even at 25 V.

Works as stated. The blue spark is very tiny but the luminescent bulb lights up spectacularly. You can present it like a nice trick to the kids. I have added a thermo-silicone paste between the transistors and their heat sinks. And finally I put a small fan from an old video-card - no worry to burn out the transistors even at 25 V.

Works as stated. The blue spark is very tiny but the luminescent bulb lights up spectacularly. You can present it like a nice trick to the kids. I have added a thermo-silicone paste between the transistors and their heat sinks. And finally I put a small fan from an old video-card - no worry to burn out the transistors even at 25 V.

Nice little machine. A disadvantage for me as non-Chinese customer are the all Chinese instructions. To compensate for that, I wrote my own assembly instructions (in English). I tried to upload them but there is an error message about exceptions. If you want the .pdf to publish on the Banggood site, tell me.

Nice little machine. A disadvantage for me as non-Chinese customer are the all Chinese instructions. To compensate for that, I wrote my own assembly instructions (in English). I tried to upload them but there is an error message about exceptions. If you want the .pdf to publish on the Banggood site, tell me.

Nice little machine. A disadvantage for me as non-Chinese customer are the all Chinese instructions. To compensate for that, I wrote my own assembly instructions (in English). I tried to upload them but there is an error message about exceptions. If you want the .pdf to publish on the Banggood site, tell me.

Very nice item, take care that the primary winding L1 (i used 2 turns) is in the opposite direction of the secundary coil L2! experimenting with the numbers of turns of L1 and the voltage 12-24V gives different results…I have made 2 little video's, but cannot add them :(

Very nice item, take care that the primary winding L1 (i used 2 turns) is in the opposite direction of the secundary coil L2! experimenting with the numbers of turns of L1 and the voltage 12-24V gives different results…I have made 2 little video's, but cannot add them :(

Very nice item, take care that the primary winding L1 (i used 2 turns) is in the opposite direction of the secundary coil L2! experimenting with the numbers of turns of L1 and the voltage 12-24V gives different results…I have made 2 little video's, but cannot add them :(

be carefull with polarity of some elements. And leave shorty first coil if you want spark . I have to be abla get spark at 12v and 19v .

be carefull with polarity of some elements. And leave shorty first coil if you want spark . I have to be abla get spark at 12v and 19v .

be carefull with polarity of some elements. And leave shorty first coil if you want spark . I have to be abla get spark at 12v and 19v .

Great fun! I'm a beginner, but I had no trouble assembling it. Coolers must be installed before soldering. The roll should be glued to the base. The fiber protruding from the roll can also be glued to a piece of cut cardboard. I replaced one of the LEDs with a different color and the wire I sent with a better one. I haven't tried the sound yet, but it sure works. Jó móka! Kezdő vagyok, de nem okozott nehézséget az összeszerelése. A hűtőket forrasztás előtt fel kell szerelni (én elrontottam, ezért látszik a képeken a gyurmaragasztás). A tekercset az alapra kell ragasztani. A tekercsből kilógó szál is rögzíthető ragasztással egy kivágott karton darabra. Én lecseréltem az egyik LED-et más színűre, és a küldött vezetéket egy jobb minőségűre. A hangot még nem próbáltam, de biztos működik az is.

Great fun! I'm a beginner, but I had no trouble assembling it. Coolers must be installed before soldering. The roll should be glued to the base. The fiber protruding from the roll can also be glued to a piece of cut cardboard. I replaced one of the LEDs with a different color and the wire I sent with a better one. I haven't tried the sound yet, but it sure works. Jó móka! Kezdő vagyok, de nem okozott nehézséget az összeszerelése. A hűtőket forrasztás előtt fel kell szerelni (én elrontottam, ezért látszik a képeken a gyurmaragasztás). A tekercset az alapra kell ragasztani. A tekercsből kilógó szál is rögzíthető ragasztással egy kivágott karton darabra. Én lecseréltem az egyik LED-et más színűre, és a küldött vezetéket egy jobb minőségűre. A hangot még nem próbáltam, de biztos működik az is.

Great fun! I'm a beginner, but I had no trouble assembling it. Coolers must be installed before soldering. The roll should be glued to the base. The fiber protruding from the roll can also be glued to a piece of cut cardboard. I replaced one of the LEDs with a different color and the wire I sent with a better one. I haven't tried the sound yet, but it sure works. Jó móka! Kezdő vagyok, de nem okozott nehézséget az összeszerelése. A hűtőket forrasztás előtt fel kell szerelni (én elrontottam, ezért látszik a képeken a gyurmaragasztás). A tekercset az alapra kell ragasztani. A tekercsből kilógó szál is rögzíthető ragasztással egy kivágott karton darabra. Én lecseréltem az egyik LED-et más színűre, és a küldött vezetéket egy jobb minőségűre. A hangot még nem próbáltam, de biztos működik az is.

جميلة جدآ . ملاحظة يرجى الانتباه الي اتجاه الملف الثاني وابعاده عن ملف الاول L1 . لان الدارة لن تعمل بشكل قوي وصحيح في حال كان اتجاه الملف L2 غير صحيح .

جميلة جدآ . ملاحظة يرجى الانتباه الي اتجاه الملف الثاني وابعاده عن ملف الاول L1 . لان الدارة لن تعمل بشكل قوي وصحيح في حال كان اتجاه الملف L2 غير صحيح .

جميلة جدآ . ملاحظة يرجى الانتباه الي اتجاه الملف الثاني وابعاده عن ملف الاول L1 . لان الدارة لن تعمل بشكل قوي وصحيح في حال كان اتجاه الملف L2 غير صحيح .

Product as description. Assembled diy kit and tested ok. Used only half of wire provided in the kit to make pimary coil, only 2 turns around the HV coil. Supply voltage around 18V to get a visible spark. Good product. Recommend.

Product as description. Assembled diy kit and tested ok. Used only half of wire provided in the kit to make pimary coil, only 2 turns around the HV coil. Supply voltage around 18V to get a visible spark. Good product. Recommend.

Product as description. Assembled diy kit and tested ok. Used only half of wire provided in the kit to make pimary coil, only 2 turns around the HV coil. Supply voltage around 18V to get a visible spark. Good product. Recommend.

livraison un peu longue mais tout les composants sont là. Pas d'alimentation fourni mais pour le prix c'est normal. Instructions en chinois mais schéma électrique très clair.

livraison un peu longue mais tout les composants sont là. Pas d'alimentation fourni mais pour le prix c'est normal. Instructions en chinois mais schéma électrique très clair.

livraison un peu longue mais tout les composants sont là. Pas d'alimentation fourni mais pour le prix c'est normal. Instructions en chinois mais schéma électrique très clair.

works very well, i love it !

works very well, i love it !

works very well, i love it !