Because people don't like highly directional, low CRI, point light sources in occupied spaces?
The smaller and cheaper the emitter, the narrower the beam spread is likely to be. This is perceived as harsh.
Also, technically speaking there are no 'white LED's'. They achieve their whiteness by a combination of various wavelength LEDS and diffuser coatings.
Unlike integrated IR LEDs, which work fine being only one wavelength.
They may look white, but the hodgepodge spectrum filling, if not done well, will result in a poor color rendition. So you may not notice that your clothes don't actually match till you're outside.
IPVMU Certified | 12/02/15 11:54pm
Sony has a camera and also new ameras coming from china lately come with both White LED and IR LEDs.
White LEDs are triggered for short distance motion detection thus giving a clear Color Picture and conventional IR (B/W) is used for overall night vision.
For interior lighting that will never catch on. Simply turn on the room lights. The move to GREEN buildings, and POE overhead lighting is going to rule the day in the coming years.
When it comes to outside "anti-prowler" coverage, I've always been partial to using a good day/night camera along with a motion-triggered white-light flood, with the thinking that if someone is creeping around at night and a bright light snaps on, the natural inclination is to look toward the light... and if the camera is right there beside it, that means looking right into the camera for a gorgeous, well-lit, full-color facial image.