SPEDIX ES25 25A 2-4S Blheli_S FPV Racing Brushless ESC for RC Drone Spedix ES25 speed controller is designed for 150-280 size racing multirotors. The product is powered by high performance EFM8BB21 MCU, & flashed with the latest BLHeli_S program. With the combination of dedicated drive chip, this speed controller has excellent response speed & efficiency. The filter circuit of ES25 is composed of 12 low ESR capacitors, a number much more than competitors that use only 4-5 of them. As a result, ES25 has less current ripples & higher system stability, & less interference to wireless video transmitters. In additional to excellent design, ES25 is also made from finest top quality electronic parts. It is composed of 3 Oz gold plated PDB, & genuine components from estimated suppliers such as STMicroelectronics of Switzerl&, & AVX of USA. Excellent design, authentic electronic components, & good manufacturer process all together make the ESC an excellent product with great quality, reliability, & stability. Furthermore, the size of the product is managed to be as small as most compact products in the market. Specification: Brand name:SPEDIXItem name:ES25 25A Brushless ESCContinuous Current: 25 A Burst Current: 35 A Voltage Range: 2-4S Li Po Firmware: BLHe Li_SDimensions: 12.8X25.8X5 mm Weight: 5.9g Package Included:1x ES25 BLHe Li_S 25A ESC