Has anyone else noticed an increased frequency of mercury bulb explosions. Having been told it never happens we have had two in the last 5 months and a lab in a neighbouring hospital has had one, the last two within a week of each other. All the bulbs exploded within their lifespan (180 hrs, 180hrs and 80hrs) and were treated properly ie only switched on once a day and left running as long as possible. Does anyone know another source of bulbs - these were Osram 100W and 50W bulbs. If you don't want to bore the list within another long discussion on bulbs please e-mail responses. Thanks Elaine Levy -------------------------------------------------------------- Elaine Levy PhD Cytogenetics Group Wellcome Trust Centre For Human Genetics Windmill Rd., Oxford OX3 7BN tel 01865 740022 fax 01865 742186 email [log in to unmask] -----------------------------------------------------------------