Choose a 3.6 mm fixed-lens bullet camera when you want a standard field of view and a discreet outdoor setup. In our selection, you’ll find options in 2 MP, 3 MP, and even 5 MP resolutions—each suited to different detail needs. Also check water resistance and security: some cameras offer an IP rating for protection against water and dust, and provide sufficient IR distance for night footage. Most cameras use a common power supply of 12 VDC ± 25%, and some models include a versatile output.

Multi-signal compatibility is the most complex feature—but also one of the most useful. Some models include a single port that can output four switchable signals (TVI/AHD/CVI/CVBS), which makes it easier to integrate with different recorders without changing your wiring. This flexibility directly affects installation ease and future maintenance. At the same time, video compression (such as H.264) optimizes storage and transmission—an important detail for effective surveillance.

For a small shop or a home exposed to the weather, a 2 MP or 3 MP option with a 3.6 mm lens offers a good balance between field of view and cost. If it includes an IR distance of up to 20 meters, night images improve significantly. Many housings are also built to withstand the elements (for example IP67 on some models). For very sensitive areas, higher resolution (3 MP or 5 MP) captures more detail, making identification easier.

Make sure the power supply remains stable at 12 VDC ± 25%, and protect the wiring in outdoor environments. Clean the lens regularly with a soft cloth to avoid smudges and dust. For compatibility, look for models with multi-signal output or an interface that matches your existing DVR/NVR—so you avoid costly adjustments during installation.

Compare the resolution (2 MP, 3 MP, or 5 MP), the fixed 3.6 mm lens, and the infrared illumination distance (for example, up to 20 meters on some models). Also check the IP rating for outdoor use and whether the camera has multi-signal display/support (TVI/AHD/CVI/CVBS). These concrete details let you instantly understand the level of detail and how well the camera will fit your current setup.

Hikvision or Imou branded models show up often in this range, with variants from 2 MP to 5 MP and 3.6 mm lenses. For example, some products offer resolution up to 5 MP and robust connectivity, while others emphasize standard power supply and protection from the elements. Choose based on your budget, the level of detail you want, and your installation environment.