"China Building Materials Network" has greatly increased the luminous flux of LED units, making high-power LED lighting applications more possible. Due to the research and development cost, technology application, and usage concept, the cost is still relatively high, but LED lighting has a series of advantages such as energy saving, longevity, safety, environmental protection and maintenance-free, making it an application trend. Alternative to traditional light sources is unstoppable. The successful application of high-power LED light sources in some special lighting fields is the embodiment of this trend. The miner's lamp belongs to mine explosion-proof lamps. Because the miner's lamp is used on the helmet and the frequency of use is high, the working time per day is also more than 12 hours. Therefore, the weight of the lamp and the luminous flux, illumination, discharge time and service life of the lamp are better. High requirements, and these indicators are often contradictory. For example, if the luminous flux of the bulb is required to be large and the illumination is high, it is necessary to increase the color temperature of the bulb or increase the power of the bulb, but increasing the color temperature of the bulb will greatly reduce its service life. Frequent lamp replacement increases safety hazards. Increasing the power of the bulb will inevitably increase the capacity of the battery to ensure the continuous working time of the miner's lamp. As a result, the volume and weight of the lamp are increased, which brings inconvenience to the carrying and working of the miner. Therefore, the incandescent bulb used in the current miner's lamp. It is a key factor that constrains the improvement and development of miner's lamps. Because of the advantages of small size, high luminous efficiency, low power consumption, and long service life, high-power white LEDs can solve this problem well. LED miner's lamp has the following advantages: 1. Using the most advanced fourth-generation solid-state light source, the service life is theoretically up to 100,000 hours. It not only ensures that the bulb is not replaced during the life of the miner's lamp, but also eliminates the hidden dangers caused by the accident. 2. At the beginning of the lighting, the illumination (1 meter) is as high as 1200 lux. After 11 hours of lighting, the illumination is still greater than 600 lux, which effectively improves the working conditions of the miners. 3. New high-energy battery, small size, large capacity, continuous lighting time after a full charge is not less than 15 hours. 4. Completely changed the split structure mode of the traditional miner's lamp base and battery, the weight is less than 200g, and it is very light to wear. The operating temperature of the traditional miner's lamp incandescent lamp is as high as 2,500 degrees, while the operating temperature of the high-power LED miner's lamp LED light source is only less than 60 degrees. Even if the lamp cap is smashed, the gas will not be detonated. The mature lithium battery power management technology is applied, which fundamentally solves the problem. Traditional battery short-circuit, leakage, explosion and other hidden dangers, therefore, the future application of LED in the miner's lamp will quickly replace the entire market of incandescent miner's lamp.
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