Alright, FPV racers and drone builders, this one's for you. This is an EMAX Simon Series Electronic Speed Controller (ESC) that runs the popular BLHeli firmware. It's a crucial part that controls how fast your drone's motors spin. You've got three amp ratings to choose from: 12A, 20A, or 30A. Pick the one that matches the power draw of your motors – generally, smaller 130-210mm racing drones use these sizes.
It's designed for 2S to 3S LiPo batteries, which is the standard for a lot of beginner and intermediate racing quads. The firmware is highly tunable. You can connect a programming card or use your transmitter to adjust all sorts of parameters: brake type, motor timing, startup power, and even set the throttle range to match your specific receiver.
It also has built-in safety features like low-voltage cutoff (to protect your battery), over-temperature protection, and a warning if it loses the throttle signal from your receiver. They're relatively lightweight (between 21-36g depending on the amp rating) and come with the necessary bullet connectors. Just remember, you'll typically need four of these – one for each motor. A reliable, tunable ESC that's been a trusted choice in the FPV community for solid performance.
Free 30-day returns 
Free 30-day returns
