Some might prefer it a little lower, others a little higher. Warm lights have lower color temperatures, and therefore appear more yellow, while cool lights have higher color temperatures, and appear whiter or bluer. White lights are the most popular colour for the headlights of today. Whilst yellow light improves visibility in wet or foggy conditions, it can also be harder to see with yellow lights in clear conditions. However, 20%-40% of the light produced by the blue LED is lost in this process, so these "white" LEDs cannot be as efficient at creating light as a pure-color LED (and LED's cannot be made to produce a "pure-color" white). Bulbs that are marked as soft white or warm white or Kelvins below 3000 K produce a warm white light providing a warm, cozy feel to your living room and bedroom. Here we suggest a home owner to have 4 white lights and 4 yellow lights. White lights. White light is a mixture of all the wavelengths of the visible spectrum. Swapping yellow for white light. The White will appear brighter to the human eye due to the color temperature (5000K) Like mentioned above our lights are NOT street legal or DOT approved. The lighting you choose can complement the style of your home enhancing the décor and giving your home the perfect cozy look. white light vs. yellow light? I'm not sure the selective yellow you seem to lean towards would be a good choice from a safety standpoint. Yellow lights were used outdoors because insects can't see yellow light as well. Visible light ranges from approximately 400 to 800 nm in wavelength. When you are driving through snowy roads, the … ... You can get either yellow light or white light bulbs. ... 10 years ago. ... A wall that is white under a 3200K light source can look green under a 4000K light source. The Yellow Wavelength Fallacy Each color in the light spectrum has a different wavelength. How to optimize your home lighting design based on color temperature. Light intensity is probably a factor that needs more considering. So to answer your question, white light of 3500K to 5500K works best for night vision, with ~4500K being optimal for most people. As a result, many vehicles today use yellow lights only as fog lights.