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Many AC line powered DC supplies for LEDs wired in long series strings use a series connected capacitor to limit the current drawn from the power line.  Typically, these capacitors are Mylar or polyester film devices.  However, I think that much smaller ceramic type capacitors might also work.  Below is a photo showing a pair of capacitors each with the same 0.47uF 250v rating.  Clearly the ceramic device is much smaller.