Common problems of ceiling lamp
Date：2017-10-09 21:25 Author：admin Viewed：
ntroduction: ceiling ceiling lamps originated in 1995 - 1996 years, because of the lamps and the sun shape is very similar, so that the industry called "sun", and absorbing light lamp according to different places are also different, such as the use of common incandescent lamps, fluorescent lamp is mainly used for ceiling lamps home, classroom, office buildings and other space height of 4 meters places of the lighting; mainly used for stadiums, supermarkets and workshop floors in 4 to 9 meters and other places of the lighting power source and a larger volume of high intensity discharge lamp.
A, why does the lamp end turn black at the beginning of the lamp lighting?
This is a common phenomenon caused by the working performance of the lamp itself, because the lamp is not lit, liquid mercury, filament, attached to the tube wall position, once lit, attached to the filament of mercury in high temperature immediately evaporated on the tube wall, the wall is black, with the lights burning, the tube wall temperature rising, black will gradually disappear, this phenomenon is called mercury speckle phenomenon. The lamp tube shines without mercury, and the mercury is not enough. The lamp will dim, glow, and finally go out. But too much mercury can cause mercury spots.
B, why can you see a black bead in the elbow part of the lamp tube?
As mentioned earlier, there is mercury in the tube. When Mercury is enough to make the lamp work, excess Mercury will be gathered at the bend. Sometimes it appears that the positive particle "bead" is sometimes dispersed in the elbow position. This excess amount of mercury ensures that the lamp has sufficient working material for thousands of hours of life, thereby ensuring the light efficiency and life of the lamp.
C why does it sometimes glow red or blue in the filament of a lamp?
Some parameters of lamp design is unreasonable, the filament current is too large, which appears blue violet lamp phenomenon, this is called glow discharge. This phenomenon will shorten the life of the tube. Handsome ceiling lamps by carefully debugging, does not appear the phenomenon.
D why does it sometimes appear flickering or rolling?
There are two reasons for this phenomenon. One is the instability of the line voltage, and the other is the unstable power at the initial stage of the new light burning at two. The former should be avoided as much as possible, and the latter usually burns at ten minutes and then stabilizes and enters a normal state.
E, why does white light look lighter than yellow?
This is the cause of the color temperature. Color is a light light color, with a black body (usually with a tungsten filament to equate) light colors consistent when the temperature of the blackbody is called the light color temperature, color temperature is referred to as. Generally, high color temperature lamps refer to 6400K and 7000K lights; low color temperature lamps refer to 2700K and 3000K lights. High and low color temperature lamps work the same principle, but the fluorescent powder used is different. The cool tone of the high color temperature lamp gives a sense of calm and coolness, while the low temperature color light gives a sense of magnificence, warmth and tenderness. Use of energy-saving lamps with power, luminous flux is slightly lower than low color temperature and high color temperature lamp lamp, but because of the high color temperature lamp is white, so to feel the opposite is more visual light.
F, handsome electronic energy-saving lamp with ordinary lamps, why not start immediately reach normal brightness, and for a period of time before turning to normal?
This is determined by the working characteristics of the tube used. The energy-saving lamp tube is excited by the discharge of the mercury vapor in the lamp tube to excite the phosphor. The discharge efficiency of mercury vapor is related to the tube temperature. When the lamp is turned on, the temperature of the lamp is lower and the discharge efficiency is low, so the light can not reach the highest temperature immediately. After 5 - 15 minutes, the tube temperature rises, the mercury vapor pressure rises to the highest point of the discharge efficiency, and the tube lights up to the highest brightness. So, in the use of good electronic energy-saving lamp brightness will gradually increase, the brightness of about 3--5 minutes after the lights will reach the best state.
G, electronic energy-saving lamps are not white, but why not dazzling?
This is due to the fact that the human visual nerve is most sensitive to the green spectrum. White is in high color temperature lamp green spectral ratio of yellow light is green color spectrum ratio high to low color temperature lamp, to stimulate stronger human vision, so the same brightness white light and yellow light looks more dazzling white, feel more bright. But with the increasing proportion of green and three color, will cause the light decay increases, therefore, in order to ensure the maintenance of light flux and the effective rate of life, only to blindly increase the color "feel more bright" is not desirable. Handsome electronic energy-saving ceiling lamp light color temperature is 6400K, many manufacturers in order to one-sided pursuit of bright and dazzling visual effects, color temperature will be increased to 6700K or higher, in fact, is not desirable.
H, why conform to the national standard of electronic ballasts, in the drive does not meet the national standard of light tube light-emitting, "water ripple" phenomenon?
In accordance with the corresponding electronic ballast only in line with the national standard GB light tube design, not to meet the standard light pipe and design changes, thus affecting the life, as the standard VCD not to import pirated discs and change the design, at the expense of "bald" life, does not meet the national standard tube in the radon (inert argon the excess gas); but not with the electronic ballast GB "only consider as soon as possible in the design of light", regardless of the speed of light, power factor and harmonic wave height, current ratio, certainly will not care about the length of life. Therefore, the use of electronic ballasts in line with the national standard, you can check the quality of the tube.
I, why the use of national standards for energy-saving lamps, ballasts, is conducive to protecting the eyes?
This is because the electronic energy-saving lamps, electricity