l  Climate environment - temperature and humidity category: high temperature, low temperature, temperature and humidity cycle, rapid temperature change, cold and hot shock, low air pressure

l  Climate environment - Lighting category: UV, xenon lamp, metal halide lamp, carbon arc lamp

l  Mechanical environment: vibration, mechanical impact, collision, steady-state acceleration, drop

l  Comprehensive environment: climatic environment (temperature, humidity)+mechanical environment (vibration, impact, collision)+electrical stress

l  Protection level: IP protection (waterproof, dustproof), IK protection (external mechanical collision protection)

l  Biological and chemical active substances: salt spray, mold, gas corrosion, chemical resistance

l  Physical properties: adhesion, hardness, button life, flame retardancy, tensile/compressive/yield strength

l  Electrical performance: insulation/withstand voltage, contact resistance, grounding resistance, temperature rise, transistor V/I curve