isolated driver and nonisolated driver

In the circuit design of isolated LED driver, the high voltage of LED driver is relatively reduced by the transformer first, and then the LED driver is rectified to output with direct current. And the whole process is the transformation of “electricity-magnetism-electricity”.

 Isolated circuit design

In the circuit design of non-isolated LED driver, the high voltage of LED driver is reduced by inductor, etc. first, and then the LED driver is rectified to output with direct current. And the whole process is the transformation of “electricity-electricity”.

Non-isolated circuit design

The difference of circuits means that the quantities of used components, cost, efficiency and output parameters are different as well. Please check the following table for the differences between isolated LED driver and non-isolated LED driver with the same output power and function.    

the non-isolated LED driver, some clients presumably hesitate because of its safety performance. But in general, the tri-proof light is installed at a higher place where our common people cannot reach instead of those professional maintenance personnel. What’s more, the tri-proof light itself is insulated with grounding wire connected, which basically eliminates the potential safety hazards generated by its casing’s exposition to people.