10K reactions · 1.7K comments | What is an LED?_ An LED (Light...

What is an LED?_ An LED (Light Emitting Diode) is a type of semiconductor device that converts electrical energy into light. _How does it work?— When a voltage is applied to the LED, electrons recombine with holes, releasing energy in the form of photons, which we see as light. _Key Characteristics:_ ���_Color_: LEDs are available in a range of colors, including red, orange, yellow, green, blue, and white. ��_Brightness_: Measured in lumens (Im) or candelas ���_Voltage_: Typically operate betwee

【LED燈泡標示多 要省電該看哪個？】 瓦數、流明、色溫，包裝上這麼多標示 買燈泡時，你會看的是...？ 先帶你了解不同標示代表的意義 💡亮度－看流明，也就是光通量，數字越大就越亮 💡省電－看瓦數，代表耗電量 💡顏色－看色溫，數字越高就偏白；數字越低就偏黃 因此，如果想挑選省電的LED燈泡 就可以用同樣的流明作為標準 瓦數越低，就代表越省電！ 分清楚流明和瓦數 才能選到最適合又節能的燈泡👌 護眼知視家 讓全家人擁有舒視好光👀http://bit.ly/2ZsZsqW #LED燈泡 #燈泡標示 #要省電看瓦數 #流明代表亮度 | Philips lighting