China Cheap 2 Years Warranty 8000K 85-265V 5W 7W 9W 12W 15W 18W LED Bulbs Price List

The biggest problem with light bulbs is the sublimation of the filament. Due to the slight difference in resistance on the tungsten wire, the temperature varies. In areas with higher resistance, the temperature rises higher and the tungsten wire sublimates faster, resulting in a cycle where the tungsten wire becomes thinner and the resistance further increases; Finally, it caused the tungsten wire to burn out. Later, it was discovered that replacing vacuum with inert gas could slow down the sublimation of tungsten wire. Today, most electric light bulbs are filled with nitrogen, argon, or krypton gas.

And light is a form of energy that is released by atoms. It is composed of many small clusters resembling particles, which have energy and momentum but no mass. These particles are called visible photons and are the most fundamental units of light. When electrons are excited, atoms will release visible photons. If you already know how atoms work, then you know that electrons are negatively charged particles walking around the nucleus.