How to distinguish between three-color lamps and ordinary lamps

Three-color lamps and ordinary lamps are different: different principles, different advantages and disadvantages.

One, the principle of different

1, three-color lamp: three-color lamps are energized to emit electrons and mercury inside the lamp to form an internal circuit loop. Mercury atoms in the lamp collision with inert gases after the discharge, excitation of 253.7nm ultraviolet light, ultraviolet light is absorbed by the three-color phosphor into visible light

2, ordinary lamps: ordinary lamps are the use of low-pressure mercury vapor in the discharge process of ultraviolet radiation, so that the phosphor emits visible light

Two, the advantages of different

1, three-color lamps : three-color lamps with good color rendering, low light decay, high luminous efficacy

2, ordinary lamps: ordinary lamps are cheap, so it applies to the thick tube fluorescent lamps

Three, the disadvantages are different

1, three-color lamps: three-color lamps there is a serious radiation and stroboscopic, and does not apply to close-range table lamps

2, ordinary lamps: ordinary lamps: the ordinary Lamp luminous efficiency is not high enough, light attenuation

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