标题: EcoLight: A Cost-Benefit Analysis of LEDs [打印本页] 作者: HellenLind 时间: 2025-9-15 06:30 标题: EcoLight: A Cost-Benefit Analysis of LEDs
Because the symbol of innovation, the incandescent gentle bulb will not be very revolutionary. It hasn't modified much since Thomas Edison introduced it in 1879. It still generates mild by heating a tungsten filament till it reaches 4,172 levels Fahrenheit (2,300 levels Celsius) and glows white-scorching. Unfortunately, all of that white gentle isn't very green. Solely 10 percent of the electricity needed to energy a bulb goes towards making gentle. The rest is wasted as heat. Within the 2000s, the CFL bulb seemed poised to substitute incandescent gentle bulbs - so, what occurred? The end of CFLs? What Are CFL bulbs? Compact fluorescent lamps, or CFLs for short, comprise argon and mercury vapor housed inside a spiral-shaped tube. They even have an built-in ballast, which produces an electric current to go by way of the vaporous mixture, thrilling the gasoline molecules. In older CFLs, it took several seconds for the ballast to supply enough electricity to ramp up the excitation. Newer CFLs have extra efficient ballasts and require a shorter warm-up.
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