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Question:

Does the non LED flashlight have a constant current drive circuit?

Does the non LED flashlight have a constant current drive circuit?

Answer:

You see, if you're not using a LED light bulb, it's directly connected to the power supply!
No ordinary flashlight lamp power can be even as long as nothing more than take a switch
You are talking about ordinary incandescent lamp, so that the bulb can work as long as the rated voltage, no auxiliary circuit, only a power switch in the middle of the line

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