On Jun 16, 2008, at 9:05 PM, Apptech wrote: > Reportedly even the "best" CFLs have some mercury. 10 to 20 > mg comes to mind. There was quite a bit of discussion as a result of my "take apart a CFL" "instructable" (http://www.instructables.com/id/Take-apart-a- Compact-Fluorescent-Bulb/ ); see the comments. I dunno if any of the number were authoritative, and I wasn't really interested in chasing down competing links when MY whole point was "don't break the glass", but the number thrown around most was "under 5mg per bulb." BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist