100%Brand New and High Quality This is video,need read:v.   This product use the 20 watts of power to make the tesla coil ,produces high frequency, high voltage low current of arc spraying effect, can be easily lit fluorescent lamp, wireless transmission test.   Specification: Supply voltage: DC 15-24V Power: 20 w Active spray arc length 8mm or so, arc around 15 mm Main material: teflon tube (currently dielectric loss minimum material), 0.2 mmQA enameled wire, triode BD243, light-emitting diodes (leds), etc Product size: 75 * 25 mm in diameter ,power port:5.5x2.1mm This product under normal working around 20 watts of power! Good reliability, through testing the 2 * 24 hours a day, the product unscathed!   But must pay attention to the heat sink to work more than 5 minutes will be hot, be careful burns!   Note: Don't contact circuit part, can cause burning,although It won't be seriouse hurt.  

Package Contents 100% Brand New 1xTesla Coil board (not include the lamp and power supply)