In order to achieve and to comply stringent safety requirements, we have equipped a UL evaluated testing laboratory since 1985. In 2000, we further invested over USD2.5 million to facilitate a new testing laboratory and testing equipment, such as endurance testing modules, testing apparatus and gauges, which are capable to test our products according to UL and EN standards. It is a fully equipped; multi-functional and computerized control laboratory. We strictly imply onto our routine quality checking procedures.