1. Why can fluorescent lamps not be used as a dimming light?
Energy-saving lamps (including electronic ballasts) of ordinary circuits have a certain range of operating voltage. For example, the working voltage of 220V energy-saving lamps is usually between 190V and 240V. Lamps that exceed this range will not work reliably. The dimmer in the dimmer lamp usually adjusts the operating voltage from 0V to 220V. This has no effect on the operation of the resistive load such as the ordinary incandescent lamp, but for the energy-saving lamp, the 0V-190V low voltage The segment will cause the lamp to start difficult or even burn.
2. What is the reason that the environment below -10°C or higher than 50°C will adversely affect the service life of the lamp? The effect of low temperature on service life is mainly manifested in difficulty in starting the lamp and low light output. When the ambient temperature is lower than -10 degrees, the mercury vapor pressure in the lamp is too low, the gas discharge is very difficult, and the lamp will not start normally. At this time, the electronic circuit is still working, and the components will not be able to withstand excessive power. burn. When the ambient temperature is low, even if it can be started, the light output of the lamp will be very low, which can not meet the lighting requirements. It should be mentioned that high-performance electronic ballasts have a protection circuit that automatically closes when the lamp fails to activate to protect the components from damage. The effect of high temperature on service life is mainly reflected in the greatly reduced lamp life. The maximum working temperature of the component is usually 105 degrees (for example, the electrolytic capacitor has a lifetime of 1000 hours at 105 degrees). When the ambient temperature is higher than 50 degrees, the ambient temperature in the plastic case will be higher, plus the lamp baking. As the components themselves heat up, the temperature of the electronic components that are enclosed may even exceed 100 degrees, and the components will not be able to withstand high temperatures for a long time and burn out. In addition, the ambient temperature is too high, the light output of the lamp will be greatly reduced.
3. Why should fluorescent lamps not be used in water or humid environments? What are the requirements for humidity?
When the energy-saving lamp is used in a water or humid environment, there will be water or steam around and inside the lamp. First, it will cause the lamp head to rust and cause bad contact. Second, it will cause components and circuit boards to rust and damage the circuit. Third, it will cause breakdown of the insulation capacity of components and circuit boards. Fourth, it will cause a short circuit. 4. Why can't fluorescent lamps be used in situations where chemical corrosion gases or liquids are present?
4. The use of chemically corrosive gases and liquids can cause serious oxidation of the lamp cap, guide wire, and components. The lamp life cannot be guaranteed.
5. Why can't a single switch control the number of lights? Why can't multiple switches close at the same time? How to control? How to choose the best parameter for control?
A single switch controls a large number of lights. When the lights are turned on and off, they can have a very large impact on the switch, causing tripping in severe cases. In addition, the impact of switching too many lamps together may damage the fluorescent lamp.
6. What is the nominal voltage of a fluorescent lamp? When the grid voltage fluctuates, what is the allowable fluctuation range? What is the problem with low voltage? What's the problem with high voltage?
China's energy-saving lamps operating voltage is 220V/50Hz.
When the grid voltage fluctuates, the allowable fluctuation range is ±10%. If the voltage is too low, the start of the lamp will be difficult and it will be burned if it is severe.
When the voltage is too high, the power of the lamp rises, the operating temperature of the lamp rises, and the device is damaged due to overheating in severe cases.
7. Why should fluorescent lamps be used when there is a large inductive load? What is the electrical or component of an inductive load?
The instant that the inductive load is turned on or off generates a very high voltage. When the lamp is on the same power grid as the lamp, a momentary voltage of more than kV is enough to cause damage, so the lamp should be away from large inductive loads. A large inductive load mainly refers to a motor in a lift, a production machine in a factory, a blower, and the like.
8. What is the average life expectancy? What are the test conditions for the average life and photoelectric parameters? What is the national standard? The average life span is the accumulated time when the lumen maintenance of the lamp meets the requirements set by the national standard and can continue to light up to 50% of the lamp to reach the life of a single lamp (that is, the lifetime when 50% of the lamp fails).
National standards for electronic energy-saving lamp life test conditions: 15 ~ 40 °C to avoid excessive ventilation; 50Hz ± 0.5%, 220V ± 2%, the lamp head up; 24h within the switch 8 (2h45min open / 15min off).
Single-ended fluorescent lamp life test conditions specified by the national standard: 15-50°C without wind environment, with the lamp head facing upwards; 50Hz±0.5%, 220V±2%.
The national standard specifies an average life of 5000h.
9. What is green lighting?
Green lighting is an energy-saving electrical product that adopts scientific lighting design, high efficiency, long life, safety and stable performance, including high-efficiency energy-saving light sources, high-efficiency energy-saving accessories (such as ballasts), and high-efficiency energy-saving lamps to achieve high efficiency, comfort, and safety , economic, environmental, and improve the quality of people's work and life, as well as lighting systems that are beneficial to people's physical and mental health and reflect modern civilization.
Green lighting aims to save energy, protect the environment and improve the quality of human lighting.
10. How to classify high-power fluorescent lamps?
Fluorescent lamps can be divided into two types: split end fluorescent lamps and self-ballasted fluorescent lamps.
The split fluorescent lamp is separated from the electronic ballast. Since the electronic ballast is a separate electrical box, a relatively precise circuit can be designed and more circuit monitoring and protection components can be assembled, so the service life can be as long as 3 years. The above; also because the lamp is a consumable, life is often much shorter than the ballast, so when the lamp is damaged only need to replace the lamp, you can continue to use, is the green light source that does not waste resources.
Self-ballasted fluorescent lamps come with a full range of control circuits such as ballasts and starters, and are fitted with Edison screw heads or socket heads. The circuit is generally enclosed in a shell. Due to the limited space of the shell, the control circuit in the lamp assembly is extremely simple, and a good protection method cannot be designed. Because the ballast assembly is too close to the lamp tube, the ballast is overheated. Caused a short life of self-ballasted fluorescent lamps. When the self-ballasted fluorescent lamp is damaged by the lamp, the ballast is also scrapped at the same time. It is not environmentally friendly to consider resource conservation.
Energy-saving lamps (including electronic ballasts) of ordinary circuits have a certain range of operating voltage. For example, the working voltage of 220V energy-saving lamps is usually between 190V and 240V. Lamps that exceed this range will not work reliably. The dimmer in the dimmer lamp usually adjusts the operating voltage from 0V to 220V. This has no effect on the operation of the resistive load such as the ordinary incandescent lamp, but for the energy-saving lamp, the 0V-190V low voltage The segment will cause the lamp to start difficult or even burn.
2. What is the reason that the environment below -10°C or higher than 50°C will adversely affect the service life of the lamp? The effect of low temperature on service life is mainly manifested in difficulty in starting the lamp and low light output. When the ambient temperature is lower than -10 degrees, the mercury vapor pressure in the lamp is too low, the gas discharge is very difficult, and the lamp will not start normally. At this time, the electronic circuit is still working, and the components will not be able to withstand excessive power. burn. When the ambient temperature is low, even if it can be started, the light output of the lamp will be very low, which can not meet the lighting requirements. It should be mentioned that high-performance electronic ballasts have a protection circuit that automatically closes when the lamp fails to activate to protect the components from damage. The effect of high temperature on service life is mainly reflected in the greatly reduced lamp life. The maximum working temperature of the component is usually 105 degrees (for example, the electrolytic capacitor has a lifetime of 1000 hours at 105 degrees). When the ambient temperature is higher than 50 degrees, the ambient temperature in the plastic case will be higher, plus the lamp baking. As the components themselves heat up, the temperature of the electronic components that are enclosed may even exceed 100 degrees, and the components will not be able to withstand high temperatures for a long time and burn out. In addition, the ambient temperature is too high, the light output of the lamp will be greatly reduced.
3. Why should fluorescent lamps not be used in water or humid environments? What are the requirements for humidity?
When the energy-saving lamp is used in a water or humid environment, there will be water or steam around and inside the lamp. First, it will cause the lamp head to rust and cause bad contact. Second, it will cause components and circuit boards to rust and damage the circuit. Third, it will cause breakdown of the insulation capacity of components and circuit boards. Fourth, it will cause a short circuit. 4. Why can't fluorescent lamps be used in situations where chemical corrosion gases or liquids are present?
4. The use of chemically corrosive gases and liquids can cause serious oxidation of the lamp cap, guide wire, and components. The lamp life cannot be guaranteed.
5. Why can't a single switch control the number of lights? Why can't multiple switches close at the same time? How to control? How to choose the best parameter for control?
A single switch controls a large number of lights. When the lights are turned on and off, they can have a very large impact on the switch, causing tripping in severe cases. In addition, the impact of switching too many lamps together may damage the fluorescent lamp.
6. What is the nominal voltage of a fluorescent lamp? When the grid voltage fluctuates, what is the allowable fluctuation range? What is the problem with low voltage? What's the problem with high voltage?
China's energy-saving lamps operating voltage is 220V/50Hz.
When the grid voltage fluctuates, the allowable fluctuation range is ±10%. If the voltage is too low, the start of the lamp will be difficult and it will be burned if it is severe.
When the voltage is too high, the power of the lamp rises, the operating temperature of the lamp rises, and the device is damaged due to overheating in severe cases.
7. Why should fluorescent lamps be used when there is a large inductive load? What is the electrical or component of an inductive load?
The instant that the inductive load is turned on or off generates a very high voltage. When the lamp is on the same power grid as the lamp, a momentary voltage of more than kV is enough to cause damage, so the lamp should be away from large inductive loads. A large inductive load mainly refers to a motor in a lift, a production machine in a factory, a blower, and the like.
8. What is the average life expectancy? What are the test conditions for the average life and photoelectric parameters? What is the national standard? The average life span is the accumulated time when the lumen maintenance of the lamp meets the requirements set by the national standard and can continue to light up to 50% of the lamp to reach the life of a single lamp (that is, the lifetime when 50% of the lamp fails).
National standards for electronic energy-saving lamp life test conditions: 15 ~ 40 °C to avoid excessive ventilation; 50Hz ± 0.5%, 220V ± 2%, the lamp head up; 24h within the switch 8 (2h45min open / 15min off).
Single-ended fluorescent lamp life test conditions specified by the national standard: 15-50°C without wind environment, with the lamp head facing upwards; 50Hz±0.5%, 220V±2%.
The national standard specifies an average life of 5000h.
9. What is green lighting?
Green lighting is an energy-saving electrical product that adopts scientific lighting design, high efficiency, long life, safety and stable performance, including high-efficiency energy-saving light sources, high-efficiency energy-saving accessories (such as ballasts), and high-efficiency energy-saving lamps to achieve high efficiency, comfort, and safety , economic, environmental, and improve the quality of people's work and life, as well as lighting systems that are beneficial to people's physical and mental health and reflect modern civilization.
Green lighting aims to save energy, protect the environment and improve the quality of human lighting.
10. How to classify high-power fluorescent lamps?
Fluorescent lamps can be divided into two types: split end fluorescent lamps and self-ballasted fluorescent lamps.
The split fluorescent lamp is separated from the electronic ballast. Since the electronic ballast is a separate electrical box, a relatively precise circuit can be designed and more circuit monitoring and protection components can be assembled, so the service life can be as long as 3 years. The above; also because the lamp is a consumable, life is often much shorter than the ballast, so when the lamp is damaged only need to replace the lamp, you can continue to use, is the green light source that does not waste resources.
Self-ballasted fluorescent lamps come with a full range of control circuits such as ballasts and starters, and are fitted with Edison screw heads or socket heads. The circuit is generally enclosed in a shell. Due to the limited space of the shell, the control circuit in the lamp assembly is extremely simple, and a good protection method cannot be designed. Because the ballast assembly is too close to the lamp tube, the ballast is overheated. Caused a short life of self-ballasted fluorescent lamps. When the self-ballasted fluorescent lamp is damaged by the lamp, the ballast is also scrapped at the same time. It is not environmentally friendly to consider resource conservation.
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