使馆认证是什么？领事认证是什么？使馆加签是什么？
回答内容：使馆认证、领事认证、使馆加签都是一个意思，就是每个人的叫法不一样。领事认证是指一国外交、
领事机构及其授权机构在公证文书或其他证明文书上，确认公证机构、相应机关或者认证机构的最后一个签字或者印章属实的活动.
FCC认证和UL认证有什么区别?
1、针对的测试内容不同，UL认证是做产品安规测试，FCC认证负责电磁兼容（EMC）和RF （射频）方面。
What is the difference between FCC certification and UL certification?
1, for different test content, UL certification is to do product safety testing, FCC certification is responsible for electromagnetic compatibility (EMC) and RF (radio frequency).
2、管控产品范围不同，UL认证是对无论带不带电，几平所有产品都可以申请UL。FCC认证是对工作频率大于或等于9KHz的电子产品才能进行认证。
2, the range of controlled products is different, UL certification is for all products can apply for UL, no matter with or without electricity. FCC certification is for electronic products whose operating frequency is greater than or equal to 9KHz.
3、认证类别不同，FCC认证是属于强制性认证。UL是属于非强制性认证（可以不做，不过美国市场认可程度很高）。
3, certification categories are different, FCC certification is mandatory certification. UL is a non-mandatory certification (optional, but highly recognized in the U.S. market).
4、管控机构不同，FCC认证美国政府的机构美国联邦通信委员会管控。UL认证是美国最权威的民间商业机构。
4, different control agencies, FCC certification of the United States government agency federal Communications Commission control. UL certification is the leading private business organization in the United States.
5、验厂和年检，FCC人是不需要验厂，不需要年检。UL认证是需要验厂，需要年检。
5, factory inspection and annual inspection, FCC people do not need factory inspection, do not need annual inspection. UL certification is required for factory inspection, annual inspection is required.
6、申请时间和费用，FCC认证的费用较低，申请周期短。UL认证是费用高，申请周期久。
6, the application time and cost, the cost of FCC certification is lower, the application cycle is short. UL certification is expensive and takes a long time to apply.
7、申请难度，FCC认证不用验厂，相对简单，FCC资质授权机构可发证。UL认证相对复杂/严格，证书都是UL发证，UL不授权给其他机构。7, the difficulty of application, FCC certification without factory inspection, relatively simple, FCC qualification authority can issue. UL certification is relatively complex/strict. All certificates are UL issued and UL is not licensed to other organizations.
