CCTV Lighting: Do You Need Warm White LEDs or Infrared?

Cameras require light to construct an image. When ambient light drops, traditional cameras switch on infrared (IR) LEDs. IR light is invisible to the human eye but visible to the camera sensor. This allows the camera to record in complete darkness without attracting attention.

How Night Vision CCTV Works: IR vs Visible Light

However, IR light has a major limitation: it only produces monochromatic (black and white) footage. Furthermore, IR light reflects off reflective surfaces—such as car number plates, wet leaves, or human skin—causing a 'white-out' effect that hides crucial facial features.

Warm White LEDs: The ColorVu Revolution

Modern CCTV cameras utilize large-aperture lenses (like f/1.0) and high-sensitivity sensors that can capture colour in near-total darkness. To assist in zero-light conditions, these cameras feature small, warm-light LEDs.

These LEDs cast a soft, white light that illuminates the immediate area. This keeps the camera sensor in colour mode, enabling you to identify the colour of an intruder's jacket, shoes, or vehicle—forensic details that are completely lost on black-and-white IR cameras.

Discretion vs Deterrence: Choosing the Right Lighting

Choosing between IR and Warm LEDs is a balance of discretion and deterrence:

Deterrence (Warm LEDs): The visible white light tells criminals that a camera is active and recording them, encouraging them to move on. However, some homeowners find the constant night glow intrusive to their garden design.

Discretion (Infrared): IR cameras are completely dark at night (with only a faint red glow from the LEDs). They do not draw attention to the camera, which is ideal if you want to monitor your garden discreetly without annoying neighbours.

UK Privacy Compliance & External Lighting Rules

Under UK environmental and planning laws, external lighting must not cause a nuisance to neighbours. If a warm LED security camera is mounted high and points directly into a neighbour's bedroom window, it could trigger a light pollution complaint to your local council.

Always angle LED cameras downwards, and utilize the NVR settings to dim the light output (most modern cameras allow you to adjust the LED brightness from 10% to 100% to find the perfect level).

Video Walkthrough

CCTV Lighting Comparison