(This adaptor has a ceramic E40 base and PBT E27 heat resistant collar). Goliath Edison Screw (GES) [E40] male to. 2x E40 to E27 Lamp Socket Fitting Reducer/Converter/Adaptor/Holder. E40 to E27 adaptor is 50mm high by 44mm wide (40mm screw to 27mm screw).
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