For outdoor surveillance cameras, should M8 or M12 connectors be selected?

Q: For outdoor surveillance cameras, should M8 or M12 connectors be selected?

A: If the camera power is ≤10W (e.g., 2-megapixel, POE-powered), choose the M8 series (2Pin/4Pin, IP67). It features a compact size (8mm in diameter) and low cost (about 60% of the unit price of M12), making it suitable for the narrow wiring space of cameras. If the power is ＞10W (e.g., 4-megapixel + infrared fill light), select the M12 series (4Pin/8Pin, IP67), which has a higher current-carrying capacity (5A vs. 3A of M8) to avoid camera crashes caused by insufficient power supply.