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Led fluorescent tube light is continuing anatomy, found no separate drive power. China led lighting manufacturer
Cap on both ends of the driving portion , only a few parts , one end of the bridge rectifier circuit 220V MB6S access terminal , and a filter capacitor with discharge resistance , very simple , such as a filter circuit , the ripple is a lot , there is no High-frequency interference suppression circuit , very serious disturbance on the grid ;
The other end of the two models for the 2H001 high voltage constant current diode , the load is a whole series of lamp beads , typically 2 and 80 string 0.1W lamp beads 2835 , the principle of the whole circuit is rectified boost to the 220V 308V, constant current characteristic constant pressure by partially diodes , high-pressure constant . led fluorescent tube light supplier
This circuit is very obvious drawbacks: 1 No filter circuit, all the ripple interference direct feedback to the mains power supply, if at some occasions this fluorescent excessive pollution of the grid is very large, it will affect other electrical work; 2. . serious security risks , according to the national standard , 220V creepage distance should be 6mm or more , and this design, creepage distance to the edge of the aluminum is less than 1mm, if the light board wet , it will generate an electric shock ; 3. High fever temperature, due to the constant current diode to bear a lot of pressure, heat is very intense, sometimes reaching more than 100 degrees. People will burn danger. While the LED lamp life will be greatly reduced; China led t8 tube light