Unlike traditional cameras that switch to black-and-white infrared at night, these models use a large aperture lens (often F1.0 or F1.6) and warm light or spotlight LEDs to capture
color video even in low-light or complete darkness . The illumination range varies by model, typically from
20m to 50m .
Many modern 2MP full-color bullets include AI-powered human and vehicle detection, which reduces false alarms from moving trees or animals . Some models add
active deterrence features, such as a built-in siren and flashing spotlights that trigger when an intrusion is detected .
Built for outdoor use, these cameras generally carry an
IP67 rating, meaning they are dust-tight and protected against water immersion . Housings are often metal for added durability against shock and vibration .
Many models include a
built-in microphone for audio recording, and some offer two-way talk . Connectivity varies: Wi-Fi models (like Imou) are common for easy setup , while professional models (like Dahua/Hikvision) typically use Ethernet/PoE or coaxial HDCVI connections .
Efficient
H.265 or
H.265+ compression is standard, helping to save bandwidth and storage space without sacrificing image quality . Storage options include microSD cards (on some models) or network video recorders (NVRs).
