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- Feb 05, 2018 -
Neon lights are brightly lit, filled with rarefied neon gas or other electrically powered glass tubes or bulbs, and are a cold cathode gas discharge lamp. The neon tube is a sealed glass tube with electrodes at both ends, which fills in some low-pressure gas. The thousands of volt voltage is applied to the electrode, and the gas in the ionization tube emits light. The color of the light depends on the gas in the tube. Neon is neon (neon light), a rare gas that emits a popular orange light, but uses other gases to produce other colours, such as hydrogen (red), Helium (yellow), carbon dioxide (white), and mercury Vapor (blue).