China Energy Saving Lamps Manufacturers E-mail: michelle@hdllighting.com

About the working principle of energy-saving lamps

Update:07 Mar 2019
Summary:

The energy-saving products we are talking about today a […]

The energy-saving products we are talking about today are mainly for incandescent lamps. Ordinary incandescent lighting effects are about 10 lumens per watt, and the life expectancy is about 1000 hours. Its working principle is: when the lamp is connected to the circuit, current flows through the filament (tungsten wire), and the thermal effect of the current causes the incandescent lamp to emit Continuous visible light and infrared light. At this time, the temperature of the filament rises to about 2700K. Due to the high temperature of the filament during operation, most of the energy is wasted in the form of infrared radiation. Due to the high temperature of the filament, the evaporation of the tungsten filament is also very high. Fast, so the life expectancy is also greatly shortened, about 1000 hours.
The energy-saving lamp mainly heats the filament of the lamp through the ballast. At about 1160K, the filament starts to emit electrons (because some electron powder is coated on the filament), and the electron collides with the argon atom to produce an inelastic collision. After the argon atom collides, the argon atom collides. The energy is absorbed and hits the mercury atom. The mercury atom breaks and generates ionization after absorbing energy. It emits 253.7nm ultraviolet light, and the ultraviolet light excites the phosphor to emit light. The temperature of the filament is about 1160K when the fluorescent lamp works, and the temperature is 2200K-2700K than that of the incandescent lamp. It is much lower, so its life is also greatly improved, reaching more than 5,000 hours. Because it does not have the current thermal effect like incandescent lamp, the energy conversion efficiency of the phosphor is also very high, reaching 50 lumens per watt or more.