These masterplug led gu10 bulbs replicate traditional halogen bulbs in appearance and output featuring upgraded ic driver technology providing a 90 energy saving versus their halogen equivalents the sparkling edge2edge lens maximise illumination and has a warm white 2700k colour temperature the bulbs are a43 rated with a 38 beam angle they have an average rated life of 25000 hours and are non dimmable specification fitting gu10switching cycles 15000rated a43 average rated life 25000 hours b