1. 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. 

2. Intergrated RGB LED support multiple color settings.

3. Powered by full-size 40V MOSFET to ensure extreme reliability.

4. Ultra-slim design granted LS40A with the smallest size of similar products. With a max. width of only 9mm, LS40A fits narrower arms of modern racing drones and guarantees a clean build.

5. Customized aluminum heat sink effectively accelerates heat dissipation, slows down heat accumulation, and protects the electrical core components, which provides best performance among similar products.

STM32L431
Blheli_32
Integrated RGB LED
Continuous Current : 45A
Support: 3-6S
Dimensions : 9x38x6mm