Technology Overview
Hikvision ColorVu uses a large-aperture f/1.0 lens with a high-sensitivity CMOS sensor to capture colour images in near-total darkness without IR LEDs. The technology relies on gathering available ambient light, making it highly effective in areas with some ambient light from streetlights or windows.
Dahua Full-Color takes a different approach, combining a standard lens with warm-white LED spotlights that illuminate the scene with visible light. This provides bright full-colour video at night and acts as a visual deterrent, but the LED glow is more noticeable.
Low-Light Performance
In areas with moderate ambient light, Hikvision ColorVu produces more natural-looking colour images with better dynamic range. The absence of LED spotlights means the camera is less conspicuous at night. However, in complete darkness with no ambient light, ColorVu requires supplemental lighting.
Dahua Full-Color cameras perform better in absolute darkness because the built-in LED spotlights provide consistent illumination regardless of ambient conditions. The trade-off is that the spotlight glow makes the camera more visible, which some consider a benefit as a deterrent.
Which Should You Choose?
For residential areas where street lighting exists, Hikvision ColorVu provides more natural and discreet night-time surveillance. For commercial perimeters, parking lots, and areas requiring maximum deterrent effect, Dahua Full-Color's active illumination provides better consistent results.
Both technologies have improved dramatically in recent years. Either choice will significantly outperform traditional IR night vision in terms of colour accuracy and detail at night.