Specification Brand : Migro BulletPoint1 : 2.1 billion ions/cc at 2.9 cm from emitter BulletPoint2 : Size 1.8 x 1.5 x 1.1 inches, BulletPoint3 : Maximum ion output: 20 billion ions/second BulletPoint4 : Operation 110VAC, Maximum output -7.5Kv. Using OPTIONAL MicroPin Needle Technology BulletPoint5 : Ion density verification test procedure (included) Color : Black IncludedComponents : ion density verification test procedure ItemName : Negative ion Generator High Density Output 7.5Kv, input (110VAC), HVAC Module Only ItemPackageQuantity : 1 ItemTypeKeyword : air-purifier-accessories Manufacturer : Migro NumberOfItems : 1 PartNumber : 930152 PowerSourceType : Battery Powered ProductDescription : Negative ion Generator High Density maximum output 7.5Kv. Top ion density: 2.1 billion ions/cc at 2.9 cm from emitter Ion output: 20 billion ions/second Coverage: 200 square feet ( *) Particle effectiveness: as small as .01 micron Power use: less than 1 watts, Operation 110VAC, ( * Based on device location and room air flow ) ProductSiteLaunchDate : 2014-12-12T21:58:30.954Z RecommendedUsesForProduct : Commercial UnspscCode : 26111600 Voltage : 7500 volts_of_alternating_current Wattage : 10 milliwatts