产品说明：

用于测量LED的光通量或照度，严格按照国家标准设计，V(λ)修正水平一级精度，测试数据可直接源至中国计量院NIM、美国NIS下。接口采用BNC(大小可接受定制)。

Used to measure for LED of luminous flux,illumination, in strict accordance with national standard design,V(λ)correction,up to national standard accuracy test data can be directly traced back to China Institute of Metrology NIM,NIST United States.