All lights have a limited lifespan, but they fail in different ways. Traditional light bulbs tend to burn out quite suddenly. LED lights tend to gradually dim as they start to get old, without any sudden and distinctive moment of failure. That gives their owners more warning before the lights go out, and thus more time to find a good deal on replacements.
LED lights operate at significantly lower temperatures than most other sources of light. That is ideal for greenhouses, libraries, and other areas that can be sensitive to variations in temperature. This is less important for light fixtures that do not come in close contact with items that are sensitive to heat, but it will reduce the risk of pain from accidental contact with a hot light in any environment.
LED lighting can even be used for wireless communications. The lights are adjusted rapidly, at a rate that makes it impossible for humans to notice the changes. A receptor picks up the light and analyses the pattern in the changes, which it translates into data. The underlying principle is similar to other wireless systems, but it relies on light instead of radio waves, which allows it to be used in environments where traditional wireless systems are useless.
Modern LED lighting offers significantly greater energy efficiency than most other options. An average LED light fixture will use approximately 75% less energy than a traditional light of roughly the same intensity. That difference can add up quickly if every bulb in a house is replaced with an LED system. Homeowners can shrink their energy bill by switching over to LED lighting, but the environmental benefits are often the main reason that people switch. Conserving energy helps the environment, which means that LED lights can be a useful tool for sustainable living.
People who want colored lighting usually get it by installing an LED system. Each LED will produce a specific shade of light without using any filters or extra equipment, which makes them easier to use and more efficient than other forms of colored lighting. That is one of the main reasons that most holiday lights are now made from LED systems, but larger colored light fixtures are also available and are useful for signs, parties, and other specialized roles.