A constant current driver ( http://www.smarts-electronics.com/constant-current-led-driver_c20 ) varies the voltage across the electronic circuit in order to keep and maintain a constant electrical current. This makes sure that no matter the change in voltage, the current driven to the LEDs will remain at a steady, desired level. W hen you’re building your own fixture or working with our high powered LEDs , it is of your best choice to use constant current drivers because t hey avoid violating the maximum current specified for the LEDs, therefore avoiding burnout/thermal runaway. What is more, t hey are easier for designers to control applications, and help create a light with more consistent brightness. What factors you should take into consideration when you use constant current led driver power supply in your led light?? Firstly, the range of the output voltage of led driver should totally matched with the exact working output voltage of your led light. Secondly,
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