What size screen is right? Projector optimal projection distance 80 inches is about 2.9-3.4 meters! 120 inches is probably between 4.4-5.0! When purchasing a projector, we first notice the important parameters such as brightness, resolution, contrast, and uniformity of the p
Read moreShenzhen Changfang Lighting Co., Ltd. announced on December 4 that its wholly-owned subsidiary Huizhou Changfang Lighting Energy Saving Technology Co., Ltd. (hereinafter referred to as “Huizhou Changfangâ€) was recently approved by Huizhou Municipal Administration for Industry and Commer
Read moreThis year's express season has 104 days from the "Double 11" to the Spring Festival. A few days ago, the State Post Bureau held the 16th Secretary-General's Office this year. At the meeting, the 2014 “Service Guarantee Program for the Express Service Season†w
Read moreFrom December 2009 to January 2014, a total of 264 LTE networks in 101 countries/regions were put into commercial operation. It is expected that almost the same number of LTE networks will be put into operation in the next five years, and the LTE network will cover 64% of the
Read moreNatural Negative Ion Generator: The air contains positive and negative ions, and the positive and negative ions must achieve a certain balance. When the crystal salt lamp warms up, it releases negative ions, absorbs moisture, and neutralizes excess positive ions in the air (home computers
Read moreThe friends who have seen "Detective Conan" should know that Conan has a lot of props for solving crimes. One of the most famous ones is the watch type anesthesia gun. Although the appearance looks like an ordinary watch, at the crucial moment, this ordinary watch will become an anestheti
Read moreThe boy touched the LED traffic light signal pole and was in danger. The two construction workers of the LED lighting renovation project were electrocuted and the electric shock caused by LED lighting products continued to appear in the newspapers. Since last year, Philips Lighting and the US Consu
Read moreThe footsteps of 2014 rushed past. Suddenly, the mobile phone was full of all kinds of Christmas greetings. So I went to where I was, and I learned a Christmas song: "Is gold enough to lose, is gold enough?" , only enough LV". The foreigner is really wise. Many years ago, he has alre
Read more[Text|High-tech LED reporter Gan Qin] In recent years, Blu-ray high-voltage chips have become one of the key products of major chip companies by virtue of high light efficiency and excellent cost performance. Through the continuous introduction of technology and increased investment in research and
Read moreã€æ–‡|高工LEDæˆéƒ½ç«™è®°è€…何心玲】11月29日，在ç†äº‹é•¿å†¯ç¥–怀，秘书长马玉帑ã€å‰¯ç§˜ä¹¦é•¿å´ä¹
Read moreWith the development of the optoelectronic industry, the application of LED display screens has become more and more extensive. The LED module is a product that is arranged by putting together (light-emitting diodes) according to certain rules and adding some waterproof treatment. It is the core pa
Read moreIt is often asked, what is the active speaker, need to leave a power outlet at the position next to this speaker? How to connect a computer? Need to have another power amplifier... In fact, some people will ask the latter question, it is because everyone did not figure out what
Read more