Features 1、CNC Machining: CNC machined aluminum front and rear covers. The back cover adopts a hollow design, which can effectively dissipate heat. 2、Output Shaft and Bearing: High toughness stainless steel output shaft and high accuracy high quality bearings make the motor super durable. 3、High Purity Copper Coils: High purity and high temperature resistant copper coils can effectively improve efficiency. 270W maximum continuous power, 20A maximum continuous current. 4、Waterproof Performance: With waterproof design, QM3507 580KV brushless motor can adapt to more complex environments. 5、Applicable Model: QM3507 580KV brushless motor is suitable for multi rotor remote control drone motor. Motor size is 39.7x24.73mm / 1.6x1.0in. Specification Item Type: QM3507 580KV Brushless Motor Material: Aluminum Alloy + Copper + Stainless Steel Speed: 580KV Configuration: 12N14P Color: As Pictures Shown Weight: Approx. 111g / 3.9oz Motor Size (Dia x L): Approx. 39.7x24.73mm / 1.6x1.0in No Load Current: 0.5A Number of Lithium Battery: 4S Lipo Maximum Continuous Power: 270W Maximum Continuous Current: 20A Application: Multirotor Remote Control Drone Package List 1 x Motor 12 x Screw 1 x Propeller Clip 1 x Accessory 6 x Heat Shrinkable Rubber Ring 3 x Banana Head Male 3 x Banana Head Female