This is an osram powerball hci tf 35 w930 wdl pb with a gu65 base the lamp has a twist and lock base which provides easy relamping areas of application for this lamp include shop interiors shop windows foyers and reception areas museums and exhibitions accent and decorative lighting and also in outdoor applicaitons in suitable luminaires dimensions and weight for the product are as follows diameter 130 mm length 570 mm light center length lcl 300 mm