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

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