40-Amp Lite Pro Switch-Mode BEC Brushless ESC

The E-flite 40 A Lite Pro Switch-Mode BEC Brushless ESC (V2, model EFLA1040LB) is a high-efficiency, plug-and-play speed controller designed for compact sport, scale, and park-flyer aircraft. With a robust integrated switch-mode BEC, it eliminates the need for a dedicated receiver battery, reducing overall system weight and complexity.

Key Features

• Delivers up to 40 A continuous current (with proper cooling) and 55 A burst for short-power bursts
• Integrated 5 V, 5 A switch-mode BEC powers servos and receiver directly
• Supports up to seven analog or six digital servos—perfect for stabilized setups
• Compatible with 3–6S LiPo (or 9–18 NiMH/NiCd) battery systems
• Programmable options: motor braking, soft start, throttle range, timing, and cutoff behavior
• Safe power-arm feature prevents unexpected starts on the ground

Included

• E-flite 40 A Lite Pro Switch-Mode BEC ESC (V2, EC3 connectors)

Requirements

• Compatible brushless motor and LiPo battery matching your aircraft’s requirements

Specifications

• Continuous Current: 40 A
• Burst (15 s): 55 A
• BEC Output: 5 V, 5 A switch-mode
• Battery Input: 3–6S LiPo or 9–18 cell NiMH/NiCd
• Connectors: EC3 (input), 3.5 mm gold bullet (motor output)
• Dimensions: 66 × 31 × 12 mm
• Weight: 48 g