Lighting
 

http://www3.telus.net/corals/more%20corals/Bulbs.jpgI dont think there is much of a difference at all.250watt 65ooK Iwasakis on an Advance core and coil ballast.

Lighting
 

were thoes pics of 1 "R" 250 and 1 non "r" 250?
I saw the resister in the top one but not in the second one.. and the last pic is that running both the "r" and the non "R" at the same time?
oh and what is the part # for the ballast you are using? hehe

Steve

[ 26 February 2002: Message edited by: StirCrazy ]</p>

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Yes the non "R" is on the left.

Lighting
 

Part# 71A3502Advance ballast, cw Autotransformer, 250w H37 Mercurylamp 120v 60hz 2.50amps 250voc. Thats what the sticker reads.

Lighting
 

awsome, thanks pocilipora, thats exactly what I wanted to see.. cool

Steve

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I'm moving this to the reef forum.

Lighting
 

pocilipora
i expect you don't see any or much of a difference because you are running a MV ballast. as was discussed elsewhere (or earlier in this thread) the non-R was designed to run on the MV ballast. the problems that were reported were using the non-R on MH ballasts.
shane

Lighting
 

One of my 250W ballasts is made by Phillips and it is labelled M58/H37 so it is both a 250W MH ballast (ANSI M58) and a 250W MV ballast (ANSI H37). Does this make it a "combination" ballast and if so what is the implication of using this ballast to fire Iwasaki's??

:confused:

Is this a question for Iwasaki maybe?

Lighting
 

Hello,

Is the Philips ballast cheaper? Where did you buy this?

Lighting
 

Home Depot, and $30! :D

I bought all but one of my ballasts at HD when they used to sell them. They don't anymore (at least not in Calgary), I guess nobody but the occasional reefer was buying them. When I heard they were unloading their ballasts I got the last 250W ballast in the city, I checked every store! It was buried in the back of the shelf and nobody had seen it yet when I found it.

I actually kinda wish they still sold 'em ... even at their regular price per ballast it was a pretty good price! (I forget exactly now, but it was something like $60, $70 I think.) I had to pick up a second 250W ballast recently for the new tank and I was hard pressed to find anything under $100, and I called many a lighting distributor. Although I did get lucky I ended up finding a used ballast at a hydroponics outfit for $50.