MH Question

[Jaws]

Why is it that there aren't any 400W double ended MH bulbs yet? I'm sure they exist or can be made. We have the technology, we can build it.

[muck]

PFO makes a 400W DE Bulb and fixtures.

http://oceanencounter.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=OE&Product_Code=P4WDEMHSH&Category_Code=MHS

[mr_alberta]

There are only 2 makers of DE 400W as far as I know. They came out late last year sometime. There's also an article out there by Sanjay Joshi about them.

[muck]

http://www.advancedaquarist.com/issues/oct2004/review.htm

[Jaws]

Very interesting. Pretty similar to the tests on a single ended MH bulb and a DE MH bulb. There is a difference but it is minimal.

[rickjames]

J&L has a 400W double ended bulb listed now.... I wonder what it is like..

http://www.jlaquatics.com/phpstore/store_pages/details/bulbs.php?product_ID=lb-h4020q