LED to shoot the light, English name is LED spotlights, it is the most popular energy conservation and environmental protection products, with more and more of lamps and lanterns made of LED as light source, one of the most acclaimed is LED to shoot the light, as compared with other LED lamps, LED lamp price is lower.LED lamp is mainly used for decoration, commercial space, lighting and Building Lighting, etc., with the development and progress of LED technology, the market of LED lamp performance advantage is very outstanding, high purity aluminum reflector, the beam is the most accurate and reflective effect is best;Symmetrical light distribution systems such as narrow Angle, wide Angle and asymmetric etc., and the projector lamp is equipped with a scale plate, people can adjust the radiation Angle conveniently according to the scale.In addition, in order to facilitate maintenance, the LED projector lamp is replaced by a back-up switch.The lighting decoration effect is first-rate, and the LED projection lamp can realize the dynamic effects of gradual change, jumping, color flashing, random flashing, gradual change, chase and scanning.
1. LED spotlights can be driven by low-voltage direct current: it has the advantages of small load and weak interference, and has low requirements on the use environment.2. LED spotlights can control the composition of the luminous spectrum well, so that they can be well used for local or key lighting in museums and exhibition halls.
3. The luminous directivity of LED spotlights is very strong: the luminance attenuation is much lower than that of traditional light sources, and the price of LED spotlights is fairly civilian.
4. The response time of LED spotlights is very fast: at the microsecond level, as long as the switch is on, it will be on immediately without any delay or flicker.
5. The light energy concentration of LED spotlights is very high: it is concentrated in a small wavelength window with high purity.
6. The service life is very long, generally between 50,000 and 100,000 hours, because LED is a semiconductor device, and even frequent switching will not affect the service life.
7. Good environmental protection, LED to shoot the light in the process of production don't add "mercury", also do not need air, do not need glass shell, good impact resistance, good shock resistance, invulnerability to breakage and facilitate transportation, very green, known as "green energy", the LED lamp price.
8. Energy saving, the spectrum of LED spotlights is almost all concentrated in the visible light frequency band, and its luminous efficiency can reach 80 ~ 90%.It is generally believed that the energy-saving of energy-saving lamps 4/5 is a great innovation, but LED spotlights are more than 1/2 energy efficient than energy-saving lamps, which is a greater reform of solid light sources.
Led Spot Light Series,Led Track Spot Light,Mini Led Spot Light,Led Spot Light Jiangsu chengxu Electric Group Co., Ltd , http://www.chengxulighting.com
At MWC2013, the release of many novelty products is dazzling, and today we have come to take stock of a tablet and mobile phone product released by Samsung.
At MWC2013, Samsung introduced the Galaxy Note 8.0. We have already had a basic understanding of this device before. Now that evaluations of various foreign media have been released, let's take a look at how they evaluate this 8-inch device, which is also a tablet and a mobile phone.
Exterior
Various media believe that this product has a strong Galaxy Note mobile phone style, engadget said, based on this, Galaxy Note 8.0 also has some GS3 style, become more mellow. Gizmodo said that one sentence - this is Samsung's consistent mobile phone style, is only a larger version. In fact, you can indeed use this product to call, so we can think of it as a mobile phone.
hardware
The Verge believes that although a quad-core A9 processor looks a little dated this year, this 1.6GHz clocked Exynos quad-core processor and 2GB of RAM are sufficient for today's applications, and it's easy to deal with complicated web pages. However, the Note 8.0's camera is said to be ineffective, far less than the iPad mini.
Features
Like other members of the family, the Galaxy Note 8.0 is equipped with a S Pen electromagnetic pen, which is also supported by applications such as split screen operation and S Note. In addition, Samsung has also customized some applications for this device, such as Flipboard with preview support. In addition, only the iOS version of the paid application Awesome Note was also built into Note 8.0 as a free service.
In addition to S Pen and built-in applications, Galaxy Note 8.0 also added a function called "read mode". With this mode turned on, the color and brightness of the Notei 8.0 screen are optimized for reading. According to Samsung, this feature will also support third-party applications such as Kindle and Nook.
In general, the Galaxy Note 8.0 is a cross-border device for mobile phones and tablets. Functionally, this product is optimized for writing and reading. In this sense, its screen resolution is rather disappointing. In the iPad mini, Kindle Fire, Nexus 7 has occupied a large number of markets now, Note 8.0 only a S Pen, I would like to compete with the iPad mini and other courtesies may be more difficult. 