The energy efficiency class of this bulb is G. On this light bulb you'll find a GX24q-3 socket.
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Osram Dulux T/E 26w 840
LED Bulbs
Osram Dulux 26W PL-T/E Plus 4PIN Cool White - 342283
Big on Electricals
Osram Dulux 26W PL-T/E Plus 4PIN Cool White - 342283