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Description
25cm Arc Bluetooth Square Wave PCB Musical Tesla Coil Scientific Experiment Toy- US Plug25cm Arc Bluetooth Square Wave PCB Musical Tesla Coil Scientific Experiment Toy US PlugFeatures:. Desktop integrated mini solid state Tesla coil finished product, the primary and secondary are made of PCB. It is a change from the traditional solenoid secondary Tesla coil, which is highly integrated and more clean and safe.. The Tesla coil power supply is only 48 54V DC, and the low voltage power supply ensures safety, and the effect is stronger than
25cm Arc Bluetooth Square Wave PCB Musical Tesla Coil Scientific Experiment Toy- US PlugFeatures:
.Desktop integrated mini solid-state Tesla coil finished product, the primary and secondary are made of PCB. It is a change from the traditional solenoid secondary Tesla coil, which is highly integrated and more clean and safe.
.The Tesla coil power supply is only 48-54V DC, and the low-voltage power supply ensures safety, and the effect is stronger than most desktop-grade commercial half-bridge Tesla coils on the market. The 2M high frequency sub-level, there is no pain even if you touch the arc with your hands.
.The 2 in 1 Tesla coil has both a toroidal coil and a coil head integrated with 6 discharge needles. Plug in the power supply and you can experience the charm of lightning in the palm.
.Bluetooth connection can play square wave music, increasing its playability. At low frequencies, you can freely play the arc between your palms. The frequency of the music mode is higher. When the arc is concentrated at one point, there will be a burning sensation.
.The power supply is a DC power adapter, no need to be grounded, it is more stable, the heat sink has a temperature control switch, the power supply has over-current protection, the pulse width of the music mode is limited, and multiple protections. There is no fan to dissipate heat (because the heat is very low), do not run at maximum power for too long, so as to avoid the temperature control protection is too fast.
.Instructions for Use: Switch down to fixed frequency mode, the knob to adjust the arc frequency and size, pause in the middle of the switch, switch up to music mode, use the audio cable to link the phone to the maximum playback, the knob can adjust the size, the right knob Control the size of the arc and twist the clockwise pointer. The left knob controls the fixed frequency frequency, and clockwise speeds up the arc spray frequency. It is best not to open the maximum arc in music mode all the time, so as to avoid the temperature control protection is too fast. If the arc in the music mode is turned to the maximum and sometimes discontinuous, this is caused by excessive power supply protection. At this time, a small arc should be opened appropriately.
.Very good science and intelligence gifts.
Specifications:
.Color: As Shown
.Material: PCB Board + Components + Stainless Steel + Copper
.Product Dimensions: 10 x 10 x 15cm
.Product Weight: 900g
.Package Dimensions: 25 x 20 x 7cm
.Package Weight: 1000g
.Packing: Box
Package Content:
.1 x Tesla Coil
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4.2 ★★★★★
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Product Reviews
★★★★★ 5
Better then the fake down style pillows
These shredded memory foam pillows are really comfortable. They’re soft but still supportive, and I like that you can adjust the fill to get the firmness just right. They don’t go flat easily and hold their shape well through the night. Definitely a nice upgrade if you want something more customizable than a regular pillow.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Best pillow!
Size: Upgrade Queen (2 Pack)
They work!! My husband and I get really hot and it has kept us cool and I have been sleeping all night since I bought them. Will definitely be buying again! The size is accurate and perfect. It gives me great support for my neck. I don’t wake up with my neck hurting and no headaches.
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Reviewed in the United States on April 20, 2026
★★★★★ 4
Good not great pillow
Good pillow no more no less solid
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Reviewed in the United States on October 28, 2025
★★★★★ 3
Try a different pillow
Size: Upgrade Queen (2 Pack)
Even with all the memory foam in it, it's still flat. No firmness to it. I hoped it would expand and settle in the few weeks I've had the pillows, but nothing works (dryer, fluffing, etc)
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Reviewed in the United States on June 4, 2026
★★★★★ 5
This is a must have!
Size: Upgrade Queen (2 Pack)
One of my favorite purchases! I love that you can take stuffing out as needed. My husband kept majority of his in because he likes a full pillow. I prefer a flatter, soft pillow so I took out probably half of the stuffing. We both love them!
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Reviewed in the United States on May 30, 2026