Energy-saving lamps, also called compact fluorescent lamps, have the advantages of high luminous efficiency (5 times that of ordinary bulbs), obvious energy-saving effect, long life (8 times that of ordinary bulbs), small size, and convenient use. Its working principle is basically the same as that of a fluorescent lamp. In addition to white (cold light) energy-saving lamps, there are now yellow (warm light). Generally speaking, under the same wattage, an energy-saving lamp is 80% energy-saving than incandescent lamps, its average life span is 8 times longer, and the heat radiation is only 20%.
LED light-emitting diodes are solid-state semiconductor devices that can convert electrical energy into visible light. It can directly convert electricity into light. The energy consumption of white light LED is only 1/10 of that of incandescent lamps and 1/4 of that of energy-saving lamps. The lifespan can reach more than 50,000 hours, which is more than 50 times that of traditional tungsten lamps. Green and environmentally friendly, it does not contain lead, mercury and other pollution elements. Obviously, as long as the cost of LED lamps decreases with the continuous improvement of LED technology, energy-saving lamps and incandescent lamps will inevitably be replaced by LED lamps.
