Comparison of Led lamps and traditional lamps
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As a new type of lighting fixture, LED lamps have huge advantages compared with traditional lamps, and its main advantages are:
1, energy saving. The energy consumption of white LED is only 1/10 of incandescent lamps and 1/4 of energy-saving lamps.
2, longevity. The actual life can reach more than 50,000 hours, several times or even dozens of times of the general light source.
3, high purity, bright and rich colors. At present, LED products cover almost the entire visible spectrum, and the color purity is high.
4, solid light, good seismic performance, solid and reliable.
5, dynamic color control, light and dark can be adjusted, the LED combination of three primary colors can use PWM to achieve color change.
6, LED has strong luminous directivity, high luminous flux utilization, and small size, easy to control the appearance design of LED lamps and light intensity distribution.
7, LED can use DC low-voltage power supply, safe and reliable.
8, LED lamps have high luminous efficiency, and the white LED used in mass production can be up to 150lm/W.
9, green lighting, does not contain mercury and other harmful substances.
Disadvantages of LED lamps
1: The cost of LED lamps is high. The price of LED lamps is ten times or even dozens of times that of a set of energy-saving lamps.
2: High-power LED light efficiency is low more than 3W high-power LED light efficiency is lower than high-pressure sodium lamps, etc., LED energy saving can only be relative to 50W lamps. Above 50W high brightness lighting is far less than high-pressure sodium lamps.
3: LED heat is large, especially high-power lamps, which leads to more stringent requirements for heat dissipation devices of LED lamps, and correspondingly increases the volume of LED lamps. Reduces the dexterity of high-power lamps.
| Luminaire name | Luminous flux lm/W | Average life HR | Color rendering | Peculiarity | Scope of use | Development situation |
| LED(White light) | 100-150 | 50000 | 80-90 | Energy saving, environmental protection, high cost, long life | Interior and exterior decorative lighting | |
| Incandescent lamp | 8~18 | 1000 | 100 | Easy to install, low cost, high color rendering | Residential basic lighting | Will be completely retired from the light stage |
| Fluorescent lamp | 40~80 | 8000 | 40~45 | Higher brightness than incandescent lamps, lower cost, pollution | Instead of incandescent lamps | At present, the main body of office and home lighting is gradually replaced by energy-saving lamps |
| Halogen lamp | 66~10 | 4000~1200 | 80~95 | High luminous efficiency, good color rendering, long life and pollution | Projection lighting, highway lighting, industrial lighting | Due to the single shape of the light source and low flexibility, it is gradually being replaced by LED. |
| High-pressure sodium lamp | 70~15 | 8000~1600 | 20~25 | High brightness, long life, low color rendering, pollution. | Road, industrial, agricultural lighting, color requirements are not high environment | High brightness lighting, more than 50W lighting, LED temporarily can not replace its position |
| Energy-saving lamp | 50-70 | 5000 | 60-80 | Energy saving, low cost, easy to use, pollution | Residential basic lighting, decorative lighting | Gradually replace existing residential lighting fixtures. But the brightness can not develop the prospect. overlight |
