Gu10 4w led tube lamp with a very long lifetime of 50 000 hoursthe gu10 tube lamp is a real king among its peers and particularly impresses with its very long lifetime and energy savings of around 80 thanks to the efficient led technologythe warm white luminous colour of 3 000 kelvin provides for cosy hours in every home with colours being reproduced ra80 very naturally and purely ra80 characteristics classified as eec a gives off 100 light instantly m up phase start time