Difference between cool white, warm white and pure white lights

Picture shows the difference between white LED Christmas lights, compare Cool white vs warm white Christmas lights.

What is the Difference Between the Types of White LED Lights?

Pure white C9 LED bulbs that are a perfect replacement bulb for your traditional glass bulbs in your C9 cords. Use for Christmas trees, outlining

C9 Pure (Cool) White LED Bulbs E17 Bases (SMD)

Christmas Lite Co. 819016 Pure White LED C9 Christmas String Light - 26 Bulbs

Warm White vs. Cool White LED Lighting

Can I mix cool white bulbs and warm white bulbs for an intermediate effect, or will that lead to problems (aesthetic problems, eye problems, or is it considered bad taste in design)?

Warm White vs Cool White Lighting - Where to use and not to use

What is the difference between Warm White and Cool White of led color?

Warm White Light or Cool White Light---How should we choose?

Warm light bulbs vs cool light bulbs: Which is best for you?-CNET - CNET