Why are LED lights so commonly a cool white? The answer is simple: it’s because LED lights are very efficient. Unlike incandescent bulbs, LED lights produce light with just the flip of a switch. Compared to fluorescent or LED lighting, they use a lot less electricity to create the same amount of light. So even though you’re paying a little more for them right now, the long-term savings you’ll make on your energy bill will soon make up for it.
As opposed to the common misconception that all LEDs are the same colour, not all are. While most come in a standard white colour, some are available in blue and even green colours. If you prefer colours more like the “white” on a traffic light, you should find that some of these lights come in blue. It’s just a matter of finding the kind you like.
Why are LED lights so commonly a cool white? LED lights have a lot more power than traditional incandescent bulbs. High power LED produces the most illumination in a shorter amount of time and longer-lasting light. This is excellent news if you want to have a bright, colourful light over your counter or on your TV screen or in another high-traffic area. LED lights also have low energy consumption, so they will help lower your electric bill. You might also qualify for tax deductions if you have fluorescent lighting or “camo” overhead lighting since they use much less energy than regular overhead lights.
Why are LED lights so commonly a cool white? Because they’re a natural blue. Whether you’re talking about regular blue Christmas lights or blue LED lights for your TV, you’re talking about the colour of the “clean” white light bulb that is most commonly found in your typical Christmas light fixture. So, when you talk about white Christmas lights, you’re talking about a warm, pale blue that is a close cousin to the “cool” white – Fluorescent.
Why are LED lights so commonly a cool white? Because the phosphor used in most lights, whether they’re fluorescent or not, contains traces of blue pigment. When this blue pigment interacts with an electric current, it emits blue light. So, as you can probably tell, fluorescent lights are the closest thing to the “cool” white that you can get without being close to total darkness. And most fluorescent lights don’t produce any white light at all, but just a very warm blue glow.
Why are LED lights so commonly a cool white? Just because they’re cooler than pure white doesn’t mean that they’re not bright and colourful. The phosphors in fluorescent light contain about seven times more blue light than white light, making a difference. A recent study by NASA showed that a phosphor with a blue tinge could be used to create a kind of X-rays that NASA is currently using to take images of space. Phosphor is also used to make blue light for medical equipment to prevent eye injuries and other things.