Summary:LED is known as the fourth generation of energy-saving lighting products, environmental protection: no mercury, no ultraviolet rays. Energy saving: hi
LED is known as the fourth generation of energy-saving lighting products, environmental protection: no mercury, no ultraviolet rays. Energy saving: high luminous efficiency, the current mass production reaches 160lm/w. Long life: 70% luminous flux maintenance life up to 36,000 hours. Not afraid of vibration, it can realize dimming and intelligent control. Metal halide lamps are high gas discharge lamps with small luminous area, concentrated light, long irradiation distance and strong penetrating power, but the light color is slightly poor, the start-up is slow, and the ultraviolet content is high. It is suitable for high places such as roads and gymnasiums.
Self-power consumption: Metal halide lamps use inductive ballasts, which have high self-consumption and high operating current, and generate very high starting current at the moment of startup. For example, the current of 400W metal halide is as high as 15A at the moment of startup, which has a great impact on the life of electrical appliances. Large, often damaged air switch installations. At the same time, the ballast itself consumes a lot of electric energy, which causes huge electricity bills for users and accelerates the aging time of the line; LEDs use constant current drivers, which have low power consumption and high power factor, avoiding the above problems.
●Color rendering index
It is an important parameter to measure the visual quality of the light source. The color rendering index is high, so you can see things clearly under the light, and the color is true; on the contrary, it is not clear under the lamp, the light is blurred, and the object is distorted. Metal halide lamp 65, low color rendering index. Working under these light sources can easily cause myopia and visual fatigue.
● UV content
Ultraviolet light is a terrible light that can cause serious damage to people's eyes and skin, causing eye disease and skin cancer. The ultraviolet content of traditional light sources is very high. For example, the ultraviolet content of metal halide lamps accounts for 34% of the total luminous flux. Working under metal halide lamps at close range for a long time will cause considerable damage to the human body. LEDs do not contain ultraviolet rays.
● Restart capability After the metal halide lamp is turned off, it needs to wait for a period of 10 minutes before restarting, otherwise it will be burned, which will bring a lot of inconvenience to the use;
Glare is a type of light pollution, which is caused by the light source itself or the improper combination of the light source and the lamp. Working in glare can cause visual fatigue and visual errors, and is also a major cause of myopia. Metal halide lamps have serious glare due to light refraction caused by uneven glass bulb manufacturing, and they are all point light sources, and it is easy to form a focus and cause glare when matched with lamps.
Flicker is a type of light pollution, which is caused by the periodic variation of the luminous flux of a point light source with the AC voltage. Strobe light is the "invisible killer" of the lighting environment, causing myopia and migraines. The stroboscopic flicker of metal halide lamps is very serious, and people's eyes will feel the flickering of light, which is very harmful to the human visual system. The LED does not flicker because it rectifies the alternating current into direct current, and the voltage of the direct current does not change periodically.