175w SE Hamilton 10k to 175w SE Iwasaki 14k

Delphinus · #1 11-13-2006, 03:59 AM

Quote:

Originally Posted by Snappy

I must be really dumb because I don't have a clue what you guys are talking about.

Just occured to me that maybe you meant that about the nipple orientation and not what an Iwasaki 14k is. Sorry, my dumb.

There's an old ... I dunno if "urban myth" is the right way to put it, but an addage that metal halide bulbs should be screwed into their socket so that the nipple on the arc tube (that little nub thing on the glass) should be pointed upwards, otherwise you don't get the best light colour off the bulbs.

There have been studies to show that it's nonsense, but enough anecdotal evidence (i.e. people saying that it made a difference for them) that it's not complete nonsense.

I made my sockets in my 75g so that I could rotate them if need be, just to make sure my halides are always orientated that way if I can't screw them in any further.

Man, could there be any worse topic to talk about ... things that sound dirty but ain't. I'll try not to make any reference about clams and wrasses while I'm at it. Whoooops, .. um .. never mind.

wayner · #2 11-13-2006, 04:13 AM

175???, how are they in 250?

Delphinus · #3 11-13-2006, 04:56 AM

Quote:

Originally Posted by wayner

175???, how are they in 250?

Do you mean the Iwasaki's? The 14K's only come in 175W at the moment. There is talk on RC about eventually there being other wattages but so far I haven't seen them offered anywhere.

But seriously, the 175W 14K Iwasaki lamp kicks some serious butt. It has higher PAR and lumens than some 250W lamps.

Now that I have a bit more time I was able to search up Sanjay Joshi's review on the lamp:
http://www.advancedaquarist.com/2005...=iwasaki%20175
(Search on "Iwasaki 175W Aqua2 14000K Mogul Base")

You can also try playing around on his website:
http://reeflightinginfo.arvixe.com/

EmilyB · #4 11-13-2006, 04:37 AM

Tony, the last I read was nipple sideways. I'll try to find that, but it worked in this case.

Snappy · #5 11-13-2006, 04:55 AM

Interesting, thanks Tony. Am I to assume that is just the mogal base bulbs that have these nipples?

Delphinus · #6 11-13-2006, 04:58 AM

Hi Greg,

I think, as an artifact of the manufacturing process, all arc tubes have the nipples (it's where the inject the gases? I think?), it's just that DE's don't give you an option.

Quote:

Originally Posted by Snappy

Interesting, thanks Tony. Am I to assume that is just the mogal base bulbs that have these nipples?