thought of this while night driving last night and seeing old cars with yellow lights and new cars with bright white lights.
In: Technology
Older light bulbs used incandescent technology. Basically they just heat up a wire until it glows. These were really inefficient and wasted most of their energy as heat. They also had a limitation that if you wanted to get pure white out of them you had to run them incredibly hot which shortens the lifespan.
Newer lighting technologies like HID and LEDs, in addition to being way more efficient, can put out a more pure white. This purer white gives more accurate color rendering of whatever it’s shining on.
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