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Question:

The led light is a light bulb? Or is it a heat sink or a transformer?

The led light is a light bulb? Or is it a heat sink or a transformer?

Answer:

The cooling effect should be that the heat sink + transformer is better, but the price should be much higher than the lamp cup.
I hope my answer will help you.It depends on what kind of market you need to enter.
Both have power sources. You can't see the light. Stability and longevity are the latter.

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