Features
Smart all-in-one telemetry
Smart Lite functionality Provides Spektrum Smart ESC data such as input voltage, esc temperature, esc amperage, RPM, and Text Gen Telemetry data over one wire. No additional sensors required. Smart Lite ESCs do not provide Smart Battery data.

Integrated LED light power outputs for simple installation without the need of additional receiver ports
Includes 2 LED Light Strings (Red and White)
40 Amp continuous power – ideal for 1/10 scale crawlers and scalers
2S-3S LiPo Compatible
Waterproof ESC*
Multiple options for easy programming:
Smart ESC Programming Box
SmartLink USB Updating and Programmer application
Programming from Transmitter via Text Gen Telemetry

Multi-point protection: Over-current protection
Automatic LiPo low-voltage cutoff
Thermal protection
Failsafe protection

Developed and designed by Spektrum™ engineers, in partnership with the industry's leading ESC manufacturer
Compact for easy installation in most applications
Ready to install — no soldering required
Aluminum heat sink for high efficiency
Adjustable high-power BEC (6V or 7.4V, 4amp)
Firmware updatable through the Smart ESC Programming Box
High heat-resistant IC™ connectors, backwards compatible with EC™ connectors
Limited 1-year warranty
Overview
The Spektrum Firma 40 amp Brushed Smart ESC is waterproof and ready to use in most 1/10th scale RC models. Featuring programming options that make it easy to tune for your on-road and off-road racers, scalers, crawlers, and bashers