Note: Product color may vary slightly due to photography and your own computerFeature: This module is a small production with high pressure science inverter transformer / booster ready module, input terminal DC4.8V-7.2V voltage can get 500,000 volts DC high voltage (about 1-2 cm arc) at the exit. The module can be used as high school science experiments, electronic devices, negative ion generator, high voltage source used in making small science. About power: 3.7V battery can be used with two series, such as 18650, unused cell phone batteries (to remove the protective plate, suggested capacity 2000mAh or more) or NiCd / NiMH battery, 4V or 6V Lead acid batteries. Note:1. In the high-voltage module, you should avoid using electricity in a high-voltage-free state. The power must be adjusted to a suitable distance to the high voltage output line, the capacity of the battery is proportional to the distance and the use of the high pressure arc (not as high voltage as possible, you must provide enough current). 2. An experimental test of the arc distance from short to long. Do not exceed the maximum arc distance of electricity, the energy cannot be released due to high pressure, it can easily damage the module.3. Due to the power, the internal heat is not easy, each start time must be controlled within 10 seconds. 4. Determine if the battery capacity can be driven approaching the maximum power of the battery when the voltage measurement curves. If so, you can use a maximum power of 6 V.5. Two parts of a small 7.2 V capacity series, the measured arc voltage has dropped to about 4 V, the capacity of the lower voltage has been drawn lower. It is recommended to use more than one battery for 2000mA, and it is best to use one battery for more than 4000mA.Specification: Material: Metal, PlasticColor: BlackSize: 88 x 26 x 23mm(L x W x H)Weight: 66gPower Voltage: DC3.6V-6VInput Current: 2A-5AOutput voltage: DC 500KV-1000KV (Pay attention to safety when using it) Input line length: about 100mm (red is positive) Output line length: about 160mm High voltage two-way discharge distance: 10mm-20mm High type: Pulse current Structure: high- and low voltage integrated Package Includes: 1 x 1000KV Boost Step-up Power Module