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Question:

Low voltage LED lamp string resistance is how to count, there is no formula?

Example: if I want to do a 40 head low voltage lamp string, do 10 lights, 1 loop, transformer is 150MA, then how can I calculate the resistance? The grid is 60 Hz of China's power grid! Give a formula, and then count the examples. What is it?! Thank you

Answer:

Diode products cannot be calculated by resistors.
Jul 4, 2017
In general, LED lamps need constant current to drive, and the voltage may be adjusted according to the aging degree of the LED lamp.
Jul 4, 2017
If you direct the transformer to the LED lamp power supply, the life of the LED lamp will be affected, far less than the nominal value.
Jul 4, 2017

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