1.It can reappear the damage from sunlight ,rain and dew.it tests by exposing determinand in the circle of controlled sunshine and humidity as welll as  increasing the temperature at the same time.  
2.It is adopted  UV-resistant lamp to simulate the sunshine and humidity effection by the cooling or spraying at the same time.
3.It is applicable for aerospace ,car ,applicance and manufacture and school,factory ,military ,research and so on