ive seen on several websites that there are different prices for the same lamp part number poa-lmp65 Whats up with that? Can I buy the cheaper one even though it says it is for a different manufacturer? http://electrified.com/Catalog/Items/?CampaignID=Froogle&ItemID=31009 the owners manual says the replacement should be poa-lmp65 Projector central says it is a 200W UHP are they the same lamp?