How to achieve energy-saving lamps are energy efficient?
The concept of energy-saving lamps
Also known as energy-saving compact fluorescent lamps (CFL lamps foreign short) in 1978, it was first invented by the foreign manufacturers, because of its high luminous efficiency (5 times the ordinary light bulbs), energy-saving effect, long life (an ordinary light bulb 8 times), small size, ease of use by all peoples and national attention and welcome in 1982 in China, the first success in the Lighting Research Institute of Fudan University, SL-type compact fluorescent lamps developed the past two decades, the rapid growth of output , quality has improved steadily, the state has put it as a national focus on the development of energy-saving products for promotion and use.
The principle of energy-saving lamps
Mainly through energy-saving lamp ballast to the lamp filament heating temperature of about 1160K, the filament began to emit electrons (because the filament coated with a number of electronic powder), electron impact inelastic collision of argon atoms, argon atoms after collision Access to the energy and the impact of mercury atoms and mercury atoms in the absorption of energy after the ionization transitions, issued 253.7nm UV, ultraviolet excited light-emitting phosphors, fluorescent work because the temperature of the filament is about 1160K, the temperature of the work than incandescent 2200K-2700K Much lower, it also greatly increased the life span, reaching more than 5,000 hours, because it does not exist as current incandescent heat effect, the energy conversion efficiency of phosphor is also very high, reaching more than 50 lumens per watt.
In addition to energy-saving lamps white (cold) the outside, there is still yellow (warm light). In general, under the same wattage, an energy saving 80% than incandescent lamp, the average life expectancy 8 times, only 20% of the thermal radiation. Non-strict case, a 5-watt energy-saving light shines can be regarded as equal to 25 watt incandescent lamp, energy-saving 7-watt light shines approximately equal to 40 watts, 9 watts equivalent to 60 watts.
