EMC project, try to avoid places EMC project as a win-win project, investors need to ensure their own profits, to ensure the normal operation of the product, enabling the user to get the best transformation experience. But in reality, some places because of the impact of various factors, that it is not adapted to EMC projects, and investors clearly do not need to consider the project on the blind see, the two sides were satisfied with the results, but also buried under the EMC environment Under the shadow. First, the project is not recommended EMC library venue. From the basic level, EMC library project is a good renovation project, but because of the library as a general non-profit organization, with all its expenses incurred direct government departments of direct reporting. Such as staff salaries, rent, utilities costs lights, with how much they reported to the finance department. So if you do EMC lighting retrofits, energy-saving shared future financially difficult to deal with part of the money set aside to repay investors. Thus, the feasibility of the library EMC lighting retrofit projects, pending discussion. Secondly, light rails EMC projects. Since the guardrail lamps outdoor lights, so protection standards very high. Lamps working environment in the wind and rain, as the standard of protection is too high, the cost of forming a more general LED lighting is much higher lighting, so from the benefit calculation in terms of profitability is relatively low. Again, Landscape EMC projects. Landscape lights first consider its relatively short time, usually from dark to about 23 o'clock at night, and some developed cities, such as Shenzhen lights, may directly open from dark until midnight; then need to consider, landscape EMC projects, all kinds of lighting is uneven, there are low-power flood light, Square buried lights, landscape lighting alternative road next to the more difficult to replace, in the project design is too complex, difficult to sort out the general context of the project company EMC, true replacement. Finally, street EMC projects. Many people see here, I certainly think that nonsense, but as EMC now mainstream municipal street projects, the existence of a huge financial risk. Due to many reasons, listed here simply points: poor cost accounting; quality requirements; replace unclear; require high light fades. Specific details will be discussed in the streetlight EMC project. As LED lamps use up way, EMC lighting retrofit project identification process, need to be careful, do not blindly invest a lot of money, because the results of research in their own lack of unsustainable, while also allowing users to lose confidence in EMC lighting retrofits.