Spedix LS40 Slim 40A ESC BLHeli32 F4 Core 3-6S


The Spedix LS40 is an incredibly slim and compact ESC, especially for packing a 40A punch! It's protected from heat buildup and impact by an aluminum heatsink and features and integrated RGB LED for extra style points. 


  • Equipped with the latest STM32L4 chip (F4 Core) and BLHeli_32 firmware, LS40A has the fastest response speed compare to any other similar products in the market. 
  • Ultra-slim design. LS40A fits narrower arms of modern racing drones guaranteeing a clean build.
  • Powered by full-size 40V MOSFET to ensure extreme reliability.
  • Customized aluminum heat sink for improved cooling and impact resistance.
  • Intergrated RGB LED support multiple color settings.


  • Input Voltage: 3-6S
  • Max. Continuous Current: 40A
  • Burst Current(10 Sec.): 50A
  • BEC: No
  • Current Detection: No
  • Firmware: BLHeli_32
  • Integrated RGB LED
  • Dimensions: 9x38x6mm
  • Weight: 7.5g


    • 1x Wired Spedix LS40 Slim 40A 32Bit F4 ESC
    • 1x Heat Shrink

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