A2212 1000KV Brushless Motor with 30A Brushless ESC & 1 Pair of 1045 Propellers for DJI F450 F550 RC FPV Quadcopter Parts/img/pb/252/065/676/676065252_296.jpg A2212 Motor:KV: 1000Maximum Efficiency: 80%Maximum Efficiency Current: 4-10A (gt; 75%)Current capacity: 12A/ 60sNo load current at 10V: 0.5aNumber of cells: 2-3 li-polyMotor dimensions: Phi; 27.5*30mm Shaft Diameter: Phi; 3.17mm 30A Brushless ESC:Output: Continuous 30A, Burst 40A up to 10 seconds. Input voltage: 2-4 cells lithium battery or 5-12 cells NiCd/NIMh battery. BEC: 2A/5V (Linear Mode). Maximum Speed: 210,000 rpm for 2 BLM poles, 70,000 rpm for 6 BLM poles, 35,000 rpm for 12 BLM poles. (BLM: Brushless Motor) 1045 propellers:Shaft diameter: 6.0mmAdjustable by hole adapter (3mm, 3.2mm, 4mm, 5mm, 6mm, 6.35mm, 7.95mm)Center thickness: 9.7mmWeight: 15 gram/pairRecommended wheelbase: 550mm - 700mm Specifications:Package size: 24*8*2cm/9.4*3.2*0.8inPackage weight: 120g / 4.3oz Package List:1 * A2212 1000kv Brushless Motor1 * 30A Brushless ESC Propeller 2*1045 with Screws