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4 x 30a Blheli_s Brushless ESC

$19.99
product description:
  • Compatible with: 400-450 helicopters / Aircraft or Quad-Rotor Multi RC Helicopter
  • Current: 30A -Max. current: 35A - BEC: 5V 2A (Linear mode),Input Voltage: 2-4S lipo / 4-12 cell Ni-MH/Ni-Cd
  • Max Speed: 210,000rpm for 2 Poles BLM, 70,000rpm for 6 poles BLM, 35,000rpm for 12 poles BLM
  • Highest efficiency N-FET design,highest accuracy with Crystal Oscillator, temperature won't affect the PWM operating range like other cheap ESC's. Super high refresh rate, no buffering of the input signal, resulting in more than 490Hz response rate.
  • 16KHz motor frequency, giving fastest response of the motor, and quietest operation as well (no 8KHz squeal).