An LED light works under a wholly different principle ... and that blue light suppresses it more than yellow light. The daylight-bulb theory is that cool artificial light will mimic the sun ...

These home lighting options are on opposite ends of the color temperature scale. Light bulb shopping can be confusing: What is the difference between soft white vs. daylight bulbs anyway?

Home Depot has announced a new line of white LED light bulbs under its EcoSmart brand ... white”), 4000K (“cool white”), 5000K (“daylight”), and 6500K (“daylight deluxe”).