Nowadays, the demand of LED in society is gradually expanding,advances and matures of LED technology and new applications of LED continue to expand, such as security, fire protection, UV curing, VR (virtual reality), AR (augmented reality), LED packaging and lighting. Expansion capacity.But at the same time as demand, LED also received environmental impact, for example,high temperature,low temperature,rain,sunshine,etc. Climate Tester can provide environmental test chamber and rain test chamber to test LED and meet international standards.