Which one is more sound and natural?
Convert the existing B22 lamp holder into E27 holder on Chandeliers in living room and main hall.
Replace the existing B22 lamp holder with E27 holder on Chandeliers in living room and main hall.
Which action do you want? You most likely mean replace. Conversion requires assembly of the parts which are different, not the entire unit.
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Which action do you want? You most likely mean replace. Conversion requires assembly of the parts which are different, not the entire unit.