According to prevent electric shock
 
0 Class of lamps and lanterns (Class 0 luminaire)
 
The lamps and lanterns of rely on basic insulation for protection against electric shock. One thousand basic insulation failure, had to rely on environment protection against electric shock.
 
I kind of lamps and lanterns (Class I luminaire)
 
Lamps and lanterns is not only rely on basic insulation protection against electric shock, but also includes additional security measures, namely the accessible conductive parts connected to the protective earthing conductor in the fixed line, make the palpable conductive parts in one thousand basic insulation failure is not charged.
 
Class II lighting luminaire (Class II)
 
Not only rely on basic insulation protection against electric shock, and has the additional security measures, such as double insulation or reinforced insulation, but no grounding protection measures or depend on the installation conditions.
 
Class III lighting luminaire (Class III)
 
Used specially for safety voltage (SELV - safety extra - low voltage), and won't produce higher than SELV inside the lamp voltage.
 
According to the grades of dustproof, solid foreign bodies and waterproof IPxx
 
Identification of lamps and lanterns (Marking) requirements:
 
Logo should be clear and durable marking on the lamps and lanterns. Minimum height of 2 mm, symbolic minimum height of 5 mm.
 
Inspection marking durability test method is that with a soggy cloth graze 15 seconds, after being dry, reoccupy cloth graze soaked in gasoline 15 seconds, after complete the endurance test and visual inspection. After the test, marking shall be legible, labeling is not easy to fall off and not curl.