Length 168mm width 49mm a 42 watt triple turn 3 loops energy saving compact fluorescent lamp with 4 pin base gx24q 4 this energy efficient lamp has an average life of 12 000 hours and has a b class energy efficiency rating we stock branded cheap compact fluorescents including plt biax te lynx te dulux te available in colours extra warm white 827 warm white 830 standard white 835 cool white 840 what is this lamp commonly known as ge 42w biax te osra