----- Original Message ----- From: "Mike Harrison" To: "Microcontroller discussion list - Public." Sent: Monday, March 05, 2007 8:57 AM Subject: Re: [EE]:: Data projector bulb costs > On Tue, 06 Mar 2007 03:32:37 +1300, you wrote: > >>>> Except that the third party hasn't invested the million or so >>>> dollars to >>>> build >>>> a bulb plant. And bulb specs are closely guarded secrets. Things >>>> like the >>>> gas >>>> mixture and pressure are important to correct operation. >> >>> Doesn't that prove my point? $100M for a plant that builds 1M bulbs, >>> thats >>> $100 per bulb. Add labour, materials, packaging, testing, profit of >>> the >>> factory, profit of the retailer... Not far fetched. >> >>The bulbs seem to cost a minimum of about $NZ400 and can go to over >>$1000. It's not unusual to have a$600 bulb in a $1200 projector. This >>is for a 150W - 200W halogen lamp. > > It is not a halogen lamp. Modern projectors use ultra-high pressure > mercury lamps > > http://www.ercservice.com/lamps/philips/PhilipsUHPLamps.html > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist