Traffic lights, traffic lights repair price _ _ Shandong Star-Electronics

XZJD400-3-BD number Shandong Zibo Star-Electronics Co., Ltd. Explicit arrow lights on red arrow, middle yellow full screen containing red and green countdown, under the green arrow. The function of each LED lamp has a protective circuit, a single light emitting tube damage does not affect the electrical properties of the whole lamp. Medallions emitting phosphor diameter: φ300mm performance indicators: Optical: red, yellow single LED luminous intensity of not less than 4000mcd-6000mcd, green single LED luminous intensity of not less than 6000mcd-8000mcd color: red (627-629nm) green (504-506nm) Yellow (589-591nm) with the needs of the development of various modes of transport and traffic control, the first truly three-color lamp lights (red, yellow and green flag) was born in 1918. It is surrounded by three-color circular projector is mounted on a tower in New York City fifth Street, since its birth, greatly improve the urban traffic. The inventor of the yellow lights of the Hu Ruding, he with "Science Saves the Nation" vision to the US studies, in large as chairman of the American inventor Thomas Edison General Electric Company waiter. One day, he stood in the bustling crossroads waiting for a green signal, when he saw a red light and was about the past, a call to turn the car soon passing, threatened him in a cold sweat. Back to the hostel, he repeatedly refined, and finally thought in red and green in the middle plus a yellow light, a reminder of the danger. His suggestion was immediately affirmed the parties concerned. So the red, yellow, and green lights that is a complete family of traffic signals, all over the world by land, sea and air transport sector of the. October 1859, the United Kingdom, a spinner come up with a way to control the traffic light color, he created a lamp along with active devices lamp cover to London, but this invention is not caused by government attention, and later as the British often appear before the parliament building butt carriage accident, it was once again regain the invention.