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 maximises illumination and have 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 dimmable specification fitting gu10switching cycles 15000rated a43 average rated life 25000 hours b