ESC Overview:
Unleash next-level control with the Spektrum Firma 45 Smart Lite ESC, a compact, waterproof powerhouse that delivers real-time telemetry, smooth brushless performance, and Smart technology simplicity, all in one package.
About the Firma 45 Smart Lite Brushless ESC
 
Smart, Compact Power
The Spektrum Firma 45 Smart Lite Brushless ESC delivers smooth, reliable performance in a compact and waterproof design. Powered by a fast 32-bit ARM M4 processor, it ensures precise throttle control and explosive acceleration, making it ideal for Losi 22S Sprint cars and similar 2S LiPo setups. Its rugged plastic case, aluminum heat sink, and high heat-resistant IC™ connectors ensure durability and efficient cooling, even in the harshest off-road conditions.
Telemetry Made Easy
With Spektrum Smart Technology, this ESC provides real-time telemetry to your transmitter via a simple one-wire connection, no extra modules or sensors needed. You'll get instant access to vital data like battery voltage, ESC temperature, and throttle input. It also features multiple programming options, adjustable BEC, and multi-point protection, offering advanced tuning and peace of mind in every race.
Features:
Sends real-time telemetry to your transmitter
Fully waterproof for all-weather driving
Simple programming with button, box, or USB
No soldering needed, plug and play
Built-in protections for heat, current, and voltage
High-power adjustable BEC (6V or 7.4V at 4A)
Compact design fits most vehicles easily
Fast 32-bit processor for smooth, powerful control
Overload & low-voltage cutoff protection
Includes:
(1) Spektrum™ Firma™ Smart ESC
(1) Decal Sheet
(1) Manual
Specifications:
Type
Sensorless Brushless
Continuous Current
45A
Burst Current
180A
Input Voltage
2S LiPo
BEC Voltage
6V/7.4V @4A
Dimensions
1.33x0.94x0.55in (34x24x14mm)
Weight
-
Connector Type
IC5
Motor Connector
4mm Bullet