[noble]Boost Step up Power Module High voltage Generator Converter DC3 7v 7 4v Features: The high-voltage module uses the principle Tesla coil is made of high-voltage pulse output voltage current, small size , high efficiency, simple external circuit ( just plug in the switch , the battery can be ) discharge intensity violent. Specification: Voltage: Input DC3.7-7.4V, output DC400kV - 600KV( Please note that when security ) High Type: Pulse Current High voltage bipolar discharge distance: 10mm-20mm Output voltage lines Length: about 100mm Input power cable length: about 10mm ( red is positive ) Dimensions: ?24 * 64mm About Power : 3.7V Li-ion battery can be used single or two series , such as 18650 , idle cell phone batteries ( to remove the protection board , the proposed capacity of 2000mAh or more ) or NiCd / NiMH battery pack , 4V or 6V Lead Acid batteries. This module is a small production with high-pressure science inverter transformer / booster finished module , the input terminal DC3V-7.2V voltage can get 200,000 volts DC high voltage ( about 1-2 cm arc ) at the output can be used as high school science experiments , electronic equipment, negative ion generator, high voltage source to use when making small science . Note: Avoid high-pressure high-voltage module load electricity use . Must adjust the high voltage side suitable distance ( before electricity, battery voltage and capacity is proportional to the distance from high-voltage arcing used when testing the arc distance from short to long experiment , prohibited from beyond the arc when powered up , the energy can not be released due to high pressure , easily damage the module. ) Due to power, the internal heat is not easy , every power-on time should be controlled within a minute. Determine whether the battery capacity can be driven approach is the maximum power output of the battery when the voltage measurement arcing . If so you can 6V maximum power output . Two sections of small capacity lithium series of 7.2V, measured arc voltage has dropped to about 4V state , the capacity of the smaller voltage pulled lower. It is recommended to use more than one lithium battery 2000mA , 4000mA best conditions with more battery . Uses: Commonly used in 105 high-voltage generator, high voltage ignition, teaching experiments Package included: 1x 3v-6v to 400kV Boost Step-up Power Module