Working principle: The arc tube is filled with mercury, inert gas and more than one metal halide. During operation, mercury evaporates and the mercury vapor pressure in the arc tube reaches several atmospheres (a few tenths of a megapascal); the halide also evaporates from the tube wall, diffuses into the high temperature arc column and decomposes. the atoms are ionized and excited and radiate a characteristic spectrum. As the metal ions return to the tube wall, they encounter halogen atoms in the colder region near the tube wall and recombine to form halide molecules. This cyclic process continuously supplies metal vapor to the arc. The partial pressure of metal vapor at the arc axis is similar to the partial pressure of halide vapor at the tube wall, generally 1330~13300 Pa. The potential of exAverage quote of commonly used metals is around 4eV, while that of mercury is 7.8eV. The total radiation power of the spectrum of metals can greatly exceed the radiation power of mercury. As a result, a typical metal halide lamp produces predominantly metallic spectral lines. Filling with different metal halides can improve the color rendering of the lamp (the average color rendering index Ra is 70-95). Only 23% of the total mercury arc radiation is in the visible light region, while more than 50% of the total metal halide arc radiation is in the visible light region, and l The luminous efficiency of the lamp can be as high. like 120lm/W or more. Chemical reactions will occur between metal halides and electrodes, quartz glass and between halides at high temperatures. Metal halidesThese lamps are easy to deliquesce and inhaling a very small amount of water may cause abnormal discharge and turn the lamp black. The electron emitting materials of the electrodes are dysprosium oxide, yttrium oxide, scandium oxide, etc. to prevent emitting materials from reacting with halogens. Some metals (such as sodium) in the arc tube will migrate, resulting in excess halogen, making the halogen extremely electronegative, causing the arc to narrow and the starting voltage and operating voltage to increase. . Metal halide lamps cannot be reliably started by the action of the trigger electrode alone. Generally, a bimetallic starter is used, or a magnetic leakage transformer with a sufficiently high starting voltage is used, or an electronic trigger is used. The lighting of metal halide lamps requiredalso site a current limiter (i.e. a ballast), the operating current of which is higher than that of high-pressure mercury lamps of the same power. Lighting process of metal halide lamps Metal halide lamps are filled with a small amount of metal halides and gases. It takes over a minute from triggering to normal lighting and is roughly divided into three stages. 1. Trigger stage: There is no filament in the metal halide lamp, only two electrodes. It cannot be turned on by directly applying the operating voltage. High voltage must first be applied to ionize the gas in the lamp. The high voltage is generated by a dedicated trigger. 2. Fire stage: After the bulb is triggered, the electrode discharge voltage further heats the electrode, forming a glow discharge and creating conditions for aarc discharge. 3. Normal luminescence stage: under the action of glow discharge, the temperature of the electrode becomes higher and higher, and the number of emitted electrons increases, rapidly transitioning to arc discharge. As the temperature increases, the light from the lamp becomes stronger and stronger until it returns to normal. The whole process takes over a minute. If the starting current is large and the power supply has good starting performance, this process may be shorter.
The red light on the Ocean King charger means it is not charging and the green light means it is charging
Ocean King is headquartered in the district of Nanshan, Shenzhen. August 1995.is a private high-tech enterprise that independently develops, produces and sells various professional lighting equipment and undertakes various lighting engineering projects. The company has passed the system certificationme of ISO9001:2000 quality management and ISO14001 environmental management system of Det Norske Veritas (DNV); passed the GJB9001A-2001 system audit of the Chinese People's Liberation Army and became a military lighting equipment manufacturer in 2007; fully implemented excellence performance The management model focuses on “customer-focused excellence” to improve the overall efficiency and operational quality of the company.