As the technology of LED display is more and more mature and the application is more and more extensive, LED full-color display has become a part of daily life. LED full-color display can provide advertising display, news information and civilization in a timely and effective manner. Communication, video graphics and so on, Xiaobian compiled the test skills of LED full color screen, only for learning and reference. First, the LED full color display test level: In recent years, the United States, Japan, and Europe and other developed countries and governments have arranged a lot of manpower and material resources to develop and discuss LED lighting, so that the skill level of LED light source has been greatly improved. LED light source is used for general lighting. It has become possible. LED products will be the latest in energy-efficient lighting products. However, LED lighting appliances are high-skilled, high value-added products. In the past, the research on LED lighting in China was still very thin, which is very different from the foreign level. Especially in the study of the use of the roots, it is still not satisfied with the needs of China's industrial development. Second, the test content of LED full color display: 1. Radiation bandwidth: The wavelength distance of the spectral radiation power is greater than or equal to half of the maximum value. 2. Half-intensity angle: In the illuminating (or radiant) intensity component, the illuminating (or radiant) illuminating intensity is greater than or equal to the maximum intensity of half of the viewing point led lamp. 3. Reverse current: The current flowing through the light-emitting diode when the reverse voltage at both ends of the light-emitting diode is a predetermined value. 4. Forward voltage: The voltage drop that occurs between the north and the south when the forward current of the light-emitting diode is the asserted value. Summary: Now is the information society, the level of livelihood is also constantly improving, the demand for full-color LED full-color screen is also getting higher and higher, how to solve common problems in the application process of LED full-color screen? May wish to refer to the test parameters of the LED full color display!
Craft candles Multi-Color Craft Candles,Christmas Candles,Scented Candles,Wedding Candles,Floating Candle,Silver Candles HEBEI GEMMY IMP.& EXP.CO.,LTD , https://www.hbgemmy.com
The craft candle is a candle which produces all kinds of color
flame in the combustion,can as Christmas Candles or Wedding Candles,is also Scented Candles,Floating Candle, Silver Candles , and is composed of the main combustion agent, the hair
color agent and other auxiliary agent. The principle of hair color is in
accordance with some metal ions or their compounds in the heat, the molecules
in the high temperature effect, from the original orbit, the formation of
transition movement. Electrons emit the energy stored in the original when they
jump, and emit a variety of gloss, the color of the light depends on the
radiation spectrum of the substance.
1, there are a variety of burning colors: red, yellow, blue,
green, purple, etc..
2, non-toxic, no smoke, tasteless, can eliminate the smell.
3, the combustion temperature of 85 DEG C, after turnover is not
easy to burn.
4, the flame is soft, can DIY make the color of the candle body,
free combination of flame color.
5, wick combustion does not produce CO combustion gas, no
pollution to the environment.
6, for natural organic matter, easy to dissolve, with soap and
water is easy to clean.