I bought a LED light bulb, unfamous brand because of the low price. But I found that there is no transformer in it. The 220VAC direct connect to a full bridge, then to some RC filter and then direct to the LEDs. I don't know if this is a safe design. However, I found that even some famous brand such as Philips or Panasonic, their LED light bulbs are of the same size as mine, which I think is too small to house a transformer. Should I continue to use it?
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