LED energy-saving lamps are undoubtedly a kind of cooling in the era of increasing energy conservation and environmental protection. This energy-saving lamp adopts high-quality LED light source, with soft light color, low loss, and low energy consumption. It is suitable for families, shopping malls, banks, hospitals, hotels, restaurants. He illuminated various public places for a long time. So what are its types? What are its advantages? Let me explain to you one by one!
1. The LED energy-saving lamp made of straw hat type low-power LED, the power supply adopts a resistance-capacitance step-down circuit. Straw hat type LEDs continue to use the encapsulation form of indicator LEDs, epoxy resin encapsulation, so that the LED chips cannot dissipate heat, and the light decay is serious. After using for a period of time, the color temperature of many white LEDs becomes higher and gradually turns blue. It became dim. There are also manufacturers dedicated to the development of straw hat LEDs with low luminous decay. However, the luminous decay has not changed a lot because the packaging form has not been changed. This kind of LED energy-saving lamp products are transitional products with low price and poor quality.
2. For LED energy-saving lamps made of 3528 or 5050 SMD medium power LEDs, the power supply also generally uses resistance-capacitance step-down circuits, and some manufacturers use constant current circuits. Compared with straw hat LEDs, SMD LEDs have better heat dissipation. The thermally conductive substrate, when matched with the aluminum substrate, can dissipate part of the heat. However, due to the neglect of the heat of the LED, many medium-power SMD LED energy-saving lamps do not have a radiator and still use a plastic shell, and the light decay is still serious. The use of resistance-capacitance step-down low-end power supply, because the grid voltage is unstable, the current fluctuates, the brightness fluctuates, the price is moderate, and the quality is slightly better.
3. For LED energy-saving lamps made of high-power SMD LEDs, the power supply generally uses a constant current isolation circuit, that is, there is a constant current, such as a 5W LED, usually 5 pieces of 1W LED chips, connected in series, using constant current 300mA current source power supply, wide voltage power supply, when the grid fluctuates, the current does not change, the luminous flux, that is, the brightness remains constant, 5 SMD LEDs are welded on the aluminum substrate, and the aluminum substrate is combined with the radiator. The heat can be used in time Disperse quickly to ensure that the temperature of the LED chip is lower than the allowable junction temperature of the LED, thereby ensuring the true and effective life of the LED energy-saving lamp. This kind of LED lamp is expensive and good in quality, which is also the development direction of LED energy-saving lamps.
Advantages of LED energy-saving lamps
LED (Light Emitting Diode) is a semiconductor light-emitting device. LED energy-saving lamps can almost completely convert a small passing current into visible light.
1. High light efficiency
The LED luminous efficiency reaches 50-200 lumens/watt, the spectrum is narrow, and the monochromaticity is good. Almost all the emitted light can be used, and it emits colored light directly without filtering.
2.High energy saving
It has the characteristics of low voltage, low current and high brightness. The light energy emitted by a 10-12 watt LED light source is equivalent to the light energy emitted by a 35-150 watt incandescent lamp. With the same lighting effect, LEDs can save 80% to 90% energy than traditional light sources.
3. Many light colors
You can choose white or colored light, red, yellow, blue, green, yellow-green, orange-red, etc.
4. High security
The LED energy-saving light source is driven by low voltage, stable luminescence, no pollution, no 50HZ strobe, no ultraviolet B band, white color temperature 5000K, closest to the sun color temperature of 5500K.
5. Long life
The LED uses solid-state semiconductor chips to convert electrical energy into light energy, plus epoxy resin encapsulation, which can withstand high-intensity mechanical shocks. The life of a single LED tube is 100,000 hours, and the life of the light source is more than 20,000 hours. More than years.
6. Quick response
The response time of LED luminous tube is very short. When a dedicated power supply is used to supply power to the LED light source, the time to reach the maximum illuminance is less than 10ms.
7. Low operating cost
Other light sources not only consume 2 to 10 times the power of LED energy-saving light sources, but also have to be replaced almost every month, which requires a lot of equipment replacement and labor. Therefore, it is very economical to choose a long-life LED light source in the long run.
Post time: Oct-26-2020