Energy saving characteristics of LED lights

Fixed Battery Series-10W-L10-2001-10W-3H
Energy saving characteristics of LED lights
1.LED light source has high luminous efficiency

       Comparison of luminous efficiency: incandescent light effect is 10-15lm, halogen light effect is 12-24 lumens / watt, fluorescent lamp 50-90 lumens / watt, sodium lamp 90-140 lumens / watt, most of the power consumption becomes heat loss.

LED light effect: it can emit 50-200 lumens / watt, and the monochromatic light emission is good, the spectrum is narrow, no filtering is required, and colored visible light can be directly emitted.

2.LED light source consumes less power

       LED single tube power 0.03-0.06 watts, using DC drive, single tube driving voltage 1.5-3.5 volts. The current of 15-18 mA is fast and can be operated at high frequencies. Under the same lighting effect, the power consumption is one ten thousandth that of incandescent lamps and one half that of fluorescent tubes. Japan estimates that if adopted LEDs with twice the light efficiency than fluorescent lamps replace half of Japan's incandescent and fluorescent lamps, saving 6 billion liters of crude oil each year, a fluorescent lamp with the same effect of more than 40 watts, and the power of each LED is only 18 watts .

3. LED light source has a long service life

       Incandescent lamps, fluorescent lamps, and tungsten halogen lamps use electronic light field radiation to emit light, filaments are easy to burn, thermal deposition, and light attenuation. LED lamps are small in size, light in weight, and encapsulated in epoxy resin, which can withstand high-strength mechanical shock and Vibration, not easy to break, the average life span is 3-5 hours, and the service life of LED lamps can reach 3-5 years, which can greatly reduce the maintenance costs of the lamps and avoid the pain of frequent lamp changes.

4. Strong safety and reliability

       Low heat, no heat radiation, cold light source, can be safely touched, can accurately control the light type and light angle, light color, no glare, no mercury, sodium and other substances that may be harmful to health.

5.LED light source is environmentally friendly

       LEDs are all solid light emitters, impact-resistant and not easily broken, waste can be recycled, no pollution is reduced, and a large number of harmful gases such as sulfur dioxide and nitride, as well as carbon dioxide and other greenhouse gases are produced to improve people's living environment. It can be called "green lighting source."

       There are currently three types of technology for producing white LEDs: one, using the three primary color principle and three ultra-high-brightness LEDs that can be produced: red, green, and blue High InGan blue LED, the tube is always added with a little yttrium diamond pomegranate as the main phosphor, it can generate yellow-green light under the excitation of blue light, and this yellow-green light can be combined with the transmitted blue light to produce white light. Light LEDs use ultraviolet light to excite three primary color phosphors or other phosphors to produce white light that is a mixture of multiple colors.

6. LED light source is more energy efficient

Of course, energy saving is the main reason we consider the use of LEDs. Maybe LEDs are more expensive than traditional light sources. However, it takes a year to save energy to recover the investment of light sources, thereby achieving a net energy saving period of several times per year in 4-9 years. .

life

       Constant current source driving is the best LED driving method. It adopts constant current source driving. It is not necessary to connect a current limiting resistor in the output circuit. The current flowing on the LED is also not affected by changes in external power supply voltage, ambient temperature, and LED parameter dispersion. Influence, so that it can adhere to the constant current, and give full play to the various excellent characteristics of LED.

       The LED constant current power supply is used to power the LED lamps. Since the current flowing through the LED is automatically detected and controlled during the power supply operation, there is no need to worry about excessive current flowing through the LED when the power is turned on, and there is no need to worry about the load short-circuit burning. Bad power.

Lamp housing

       LED lights have the characteristics of high efficiency, environmental protection and long life. However, people who commonly use LED lights will find that LEDs are very hot, because of their extremely high brightness. At this time, if the LED can't dissipate heat as soon as possible, its life will be greatly reduced.

Many LED manufacturers use aluminum housings for LED lamps. The aluminum casing is easy to dissipate heat, has a beautiful appearance, and is lightweight. Many high-end electronic products use aluminum casings. For example, Apple's "Mac Pro" high-end computer series of notebook computers use an all-aluminum housing, which makes it easy for the notebook computer to dissipate heat, so that the computer does not even need to be equipped with a fan.

The aluminum housing of the LED can increase the life of the wick and make the LED lamp look beautiful. However, the aluminum lamp cup is relatively expensive to manufacture, and the production cost is very high. The lamp cup needs to be processed by a lathe. Therefore, some high-quality, medium-quality LED lamps will use aluminum lamp housings.

Another common LED lamp housing is a plastic housing. Due to the low cost of plastic shells, some low-end LED lamps will use plastic shells. However, plastic shells are not easy to dissipate heat, and plastics also easily melt and sublime to produce harmful gases when they are heated. Therefore, plastic casings are not used in Europe, North America and Japan. Due to the large-scale demand for cheap LED lights in some regions of China, plastic casings are sold in large quantities in China.

Household light

Many LED lamps can replace spiral incandescent or energy-saving bulbs, ranging from 5-40 watts, low-power incandescent lamps to 60 watts (only about 7 watts of electricity are required). As of 2010, some lamps can even replace higher-power bulbs. For example, a 13-watt bulb is about the same brightness as a 100-watt incandescent lamp. (General incandescent light depends on the performance standard, about 14 to 17 lumens / watt, depending on its size and voltage. According to EU standards, an "energy-saving bulb" equivalent to a 60 watt incandescent lamp, ** Must be able to output 806 lumens.)

Most LED bulbs are designed to be dimmable, but some can be operated with dimmers, and the angle of illumination is narrow. Starting in 2010, these bulbs have started to fall in price from $ 30 to $ 50. LED light bulbs are more power efficient than energy-saving light bulbs, and their life span is up to 30,000 hours if heat dissipation is appropriate. Incandescent lamps generally have a life of only 1,000 hours, and energy-saving bulbs have only about 8,000 hours. Therefore, LED bulbs can be used for about 25 to 30 years, and the luminosity decays little with the years. The ENERGY STAR standard states that after 6000 hours of use, the luminosity attenuation should be within 10%, and the maximum difference must not exceed 15%. Unlike fluorescent lamps, LED bulbs are mercury-free. LED bulbs are also available in different colors. Although the selling price is higher, the power and maintenance costs are lower and can be offset.

Special Purpose

       White LED bulbs are highly efficient and have a prominent position in low-power markets (such as flashlights, solar garden lights and pedestrian street lights, bicycle lights, etc.). Monochrome LED lights are commonly used to make traffic lights and holiday lights.

       In 2010, LED lights became a hot topic in horticulture and agriculture. NASA pioneered the use of LED lights for planting in space, followed by domestic and commercial indoor gardening. These planting lamps are specially designed, and their light waves are just the wavelength of chlorophyll absorption, which promotes growth and reduces the light waves that are not absorbed by plants, causing waste. In the visible spectrum, photosynthesis requires only two colors, red and blue, so these lamp designs have both colors. Compared with similar products, these LED lamps can provide the same luminosity, do not need ballasts, and generate much less heat than gas discharge lamps, making them suitable for indoor planting. Less fever can reduce evapotranspiration, thereby reducing the number of irrigation attempts. Because of this, plants should not be over-irrigated when using these planting lamps.

Selection guide

1. Purchase the LED lamps with the "Three Guarantees" commitment and the lamps with the CCC certification mark;

2. Depending on whether the LED lamp product identification is complete, regular products should be identified;

3. See if the LED lamp power cord has the CCC safety certification mark;

4. See if the charged body of the lamp is exposed. After the light source is installed in the lamp holder, the finger should not touch the charged metal lamp cap;

5, see if the LED chip is accurate, whether the lens or screen is worn.