Specification AgeRangeDescription : big_kid Brand : Fydun BulletPoint1 : [Input & Output Design] The module is divided into input and output ends, with red and green wires indicating polarity. ensure proper adjustment of the high voltage discharge end before power-on. BulletPoint2 : [Optimal Battery Selection] Use more than 2000ma lithium battery for better performance, and avoid using smaller batteries that may lead to reduced voltage during . BulletPoint3 : [Versatile Compatibility] Compatible with 3.7v lithium battery, nicd/nimh battery pack, and 4v or 6v lead- battery. input voltage current affects output voltage and arc distance. BulletPoint4 : [High Voltage Output] This module is a high voltage generator based on the coil principle, providing small volume, high efficiency, and intense discharge intensity. BulletPoint5 : [Safety Precautions] Test arc distance from short to long, avoid exceeding maximum arcing distance, and prevent high voltage energy build-up to protect the module from damage. Color : Green CpsiaCautionaryStatement : no_warning_applicable EducationalObjective : Creative Skills ExternallyAssignedProductIdentifier1 : 0717067819819 ExternallyAssignedProductIdentifier2 : 717067819819 IncludedComponents : No ItemDisplayWeight : 1.62 pounds ItemName : High Voltage Pulse Generator Arc Pulse Ignition Coil Module for Student Science Experiment ItemPackageDimensions_Height : 4 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 4 centimeters ItemPackageQuantity : 5 ItemTypeKeyword : pulse-generators Manufacturer : Fydun ManufacturerMinimumAge : 180 Material : plastic, magnet, metal ModelName : Fydun1cqm9z5hay ModelNumber : Fydun1cqm9z5hay NumberOfBoxes : 1 NumberOfItems : 1 NumberOfLithiumMetalCells : 1 PartNumber : Fydun1cqm9z5hay PowerSourceType : AC/DC ProductDescription : Spec: Item Type: High Voltage Pulse Generator Module Model: MC- Item Size length 88.5mm / 3.48in, diameter 26mm / 1.02in, section 24mm / 0.94in Input Parameters: 3.7-7.4V/4A Input Wire Length: About 10cm / 3.94in (red positive, green negative) Output Parameters: 800-1000KV/0.5A Output Wire Length: About 16cm / 6.3in Discharge Distance of High-Voltage Two-Pole: 1.5cm-2cm (do not exceed)