Q:

How do color changing LED lights work?

A:

Quick Answer

Color-changing light-emitting-diode bulbs contain several LEDs of different colors. The bulb simply turns on different LEDs to create different colors. For instance, an LED bulb may contain yellow, blue and red LEDs and switches on both the yellow and blue LEDs to create a green light.

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Full Answer

Some color changing LED bulbs are set to cycle through a color pattern and frequency set up by the manufacturer. These bulbs are a novelty and are only really suitable for parties. Other LED bulbs intended for practical use feature user controls in the form of a downloadable software app. Additionally, these bulbs may contain more yellow LEDs than any other to create better light for work or reading.

Other bulbs are given small computer chips and transceivers so owners can select the bulb color, color-changing pattern and length of time spent at each color themselves. These bulbs are still set up with multiple LEDs that can be switched on and off to create different colors.

These bulbs come with a software app that turns the user's smartphone into a remote. Some bulbs may also connect to the home's wireless Internet network, so users can control them over the Internet even when not at home. The app allow users to switch to different colors in real-time, switch bulbs on and off and save different color-changing programs.

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