Technical DetailsModel: A2212/10T. Material: durable aluminum alloy.Motor dimensions: ?27.5 x 30mm; Shaft diameter: ?3.17mmSuitable for RC helicopter, airplane, quadcopter and multi-copter.KV: 2200rmp/V. Max efficiency: 80%. Max efficiency current: 4-10A (>75%)Current Capacity: 12A/60s. No Load Current @ 10V: 0.5A. Number of Cells: 2-3 Li-PolyProduct DescriptionFeatures– Model: A2212/10T.? – Color: as shown in the pictures.? – Material: durable aluminum alloy.? – Motor dimensions: phi;27.5 x 30mm; Shaft diameter: phi;3.17mm? – 100% brand new and high quality 1400KV Outrunner Brushless Motor.? – Suitable for RC helicopter, airplane, quadcopter and multi-copter.? – KV: 2200rmp/V.? – Max efficiency: 80%? – Max efficiency current: 4-10A ( gt;75%)? – Current Capacity: 12A/60s? – No Load Current @ 10V: 0.5A? – Number of Cells: 2-3 Li-Poly?