When sourcing motors, you must prioritize Torque (Nm) and Rotational Speed (RPM). For standard residential blinds, a torque of 0.5Nm to 1.1Nm is usually sufficient, while heavy-duty or wooden blinds may require 2Nm or higher. Ensure the motor supports electronic limit setting for precise control and has a noise level below 40dB to meet high-end residential standards. Additionally, verify the tube diameter compatibility (commonly 25mm, 35mm, or 45mm) to ensure it fits your specific blind headrails.