Features: It can be used as high voltage source for high school science experiment, electronic instrument, negative ion generator and little science. After the input of dc 6-12V voltage, a dc high voltage of about 10,000V (about 1-2 cm of arc) can be obtained at the output end. It can generate high temperature and high frequency arc, can easily ignite combustible. According to the tesla coil principle, the module outputs high voltage pulse current, small volume and high efficiency. The peripheral circuit is simple (simply connect the switch, Install the battery), the discharge intensity is violent. Specification: Model(Optional) : 901-2(work continuously for 10s), 901-c2(work continuously for 1 min) (Note: it is strictly forbidden to exceed working time) Input voltage: DC6-12V Input current: 1A-3A (related to voltage) High pressure type: pulse high and low pressure integrated type Output voltage: approx. 0.5-1 million V(please pay attention to safety when using) Discharge distance between high pressure poles: 10-20mm Output high-voltage wire length: approx. 100mm Input power wire length: approx. 100mm (the red wire is positive) Size:86*25mm/3.4*1in Weight: Approx.63g~72g/2.2oz~2.5oz Note: 1.Avoid high-voltage no-load power supply. (it is necessary to adjust the appropriate distance of the high-voltage cable end before energizing. The distance of the high-voltage cable to pull the arc is directly proportional to the voltage and capacity of the battery used. When measuring arc distance, the test shall be conducted from short to long. 2.Power is strictly forbidden when exceeding the maximum arc distance. As the high voltage energy cannot be released, modules are easily damaged. 3.About the input power: 2 pcs3.7-v lithium battery can be used in series, such as 18650 battery, idle cell phone battery (to remove the protection board, recommended capacity above 2000mAh) or Nickel-cadmium/Ni-mh battery pack, or 6V lead Acid batteries