[Xiguang street lighting to recommend --LED] Disadvantages a single LED power is low. In order to obtain high power, require multiple parallel. 2, the color is low. In the LED illumination color display is not true incandescent, which come from the analysis of the spectral distribution, a technical problem. 3 spot. Because the white LED manufacturing process itself together with errors and defects in the reflective cup or lens, likely to cause "yellow circle" problem. 4, LED illumination uniformity problems. If no secondary optical design, LED illumination is relatively concentrated power LED lights, so be sure to make the second optical design, making the light intensity distribution was bat-shaped. 5, LED light failure problems. Compared to low-power LED, power LED street light failure will much better. However, a small low-power LED heat dissipation. The presence of high-power LED is no way to solve the problem of heat dissipation, and the brightness will be significantly reduced after the heat, so the power can not be bigger. Now the market is the biggest Spark LED street light 360W. [Greek lighting to recommend --LED] LED street lights cost comparison: we have to analyze the cost of the length of the three sections of the road are two sources of laying cable, 3 km road traditional street trunk cable load flow I = P / U = 202 * 250/220 = 230A, it needs cross-sectional area of ??60mm2 copper cable, which is priced at 120 yuan / m, then the cable cost is 120 * 3000 = 360,000 yuan offer LED lights, LED lights trunk cable load flow l = P / U = 202 * 50/220 = 44A, it needs 1Omm2 cross-section of copper cable, it needs a cross-section 12mm2 copper cable, priced at 12 yuan / m, cable cost is 12 * 300 = 36,000 yuan, 5 km road traditional street trunk cable load flow I = P / U = 333 * 250/220 = 377A, it requires a cross-section of 90mm2 copper cable, priced at 180 yuan / m LED lights, cable costs 980 * 5000 = 900,000 yuan, LED lights trunk cable load flow I = P / U = 333 * 50/220 = 73A, it requires a cross-section of 20mm2 copper cable LED street light model, priced at 25 yuan / Article Cost is 25 * 5000 = 125,000 yuan, 10 kilometers of road traffic trunk cable traditional street I = P / U = 666 * 250/220 = 680A, it requires a cross-section of 400m2 of copper cable, priced at 360 yuan / m cable costs 360 * 10000 = 3.6 million yuan, LED lights trunk cable load flow I = P / U = 666 * 50220 = 146A, it requires a cross-section of 42mm2 copper cable, priced at 60 yuan / m, the cost of 600,000. LED lights | LED streetlights preferred - Sealed Lighting | LED street lighting quotes provided by Greece. Tianjin Xiguang Lighting & Electrical Engineering Co., Ltd. (www.tjxgzm.com) in spot lights, mining lamps, explosion-proof lights, energy saving lamps, grille, fire emergency lights, and so the industry has high visibility, integrity management, quality of service both are welcome to inquire or consult our "business alliance customer service," it!