Comments on: Twin Arc Metal Halide Bulb shipping at Marine Depot

By: Darren

Darren — Mon, 10 Aug 2009 14:48:49 +0000

G – Do you have Joy’s email address?

By: G

Sun, 09 Aug 2009 18:38:42 +0000

The have to be run on a pulse start ballast. Joy and the designer booth told me this. Darren simply email Joy and ask yourself. I HIGHLY doubt they’ll leave anyone high and dry, not their style.

By: Darren

Darren — Sat, 08 Aug 2009 19:49:19 +0000

Hey Jake…while your at it see what the story is with Tullios products he sold, but never delivered.

By: Jake Adams

Jake Adams — Sat, 08 Aug 2009 18:29:28 +0000

I’ve contacted Reefbrite to find out whether the twinarc needs a pure pulse start ballast to properly drive and switch the bulbs, I’ll let you know what they say.

By: Bill

Bill — Fri, 07 Aug 2009 23:15:24 +0000

My friend & myself got 1 each of the 250W ones at IMAC. One of them we tried at the show and it changed from 10K to 20K every time it was turned off & on. We were pretty stoked with it- great concept. I tried mine at home but unfortunately only the 10K would turn on, never 20K. I tried for 3-4 days and no luck. Maybe it was the ballast I use (Icecap 250W) or maybe just a defective bulb. I’m not negative on it as it’s a new product and a great idea, just wish I knew if there’s a way to get the 20K to fire with my setup.
Bill

By: G

Fri, 07 Aug 2009 05:38:27 +0000

They will work in LumenArc Reflectors as well since you can adjust the mogul. This was confirmed at IMACwest last weekend. Reef Brites pendants are also built for this bulb and will enjoy a sweet spot for both.

By: Jake Adams

Jake Adams — Thu, 06 Aug 2009 17:16:32 +0000

Kevin,
The reflectors that ALS designed for mogul and DE were already a little bit longer than the norm but you are right that the Twinarc would benefit from being installed in a longer reflector. A few months back I told Tullio that I would give him a lot of grief if he didnt make a longer reflector just for use with the twinarc and he said that they would. When using a regular refletor, one of the envelopes is in the sweet spot which evenly distributes the light and the other is in the armpit of the reflector, with light which is reflected all over the place. Perhaps in a large enough Lumenarc reflector, it may be possible to position the envelopes so that they are equally centered in the pendant.

By: Darren

Darren — Thu, 06 Aug 2009 15:23:12 +0000

Kevin…I’m not jake, oviously, but the fixtures that Tullio was selling were a little longer in order to support the added length of the bulb. At least that’s what he told me.

By: Kevin

Kevin — Thu, 06 Aug 2009 03:44:11 +0000

Jake,
Looking closer at this bulb which is revolutionary for sure, what are your thoughts about using these in a standard mogul base reflector that was designed for the discharge tube to be in the center as opposed to them being offset from one another on these new bulbs? I am curious as to what kind of beam effects will this cause, and do you think this could negatively impact corals sitting in the â€œhot spotâ€ so to speak?

Kevin

By: jake adams

jake adams — Thu, 06 Aug 2009 03:15:21 +0000

As far as we know, Reefbrite only obtained the rights to manufacture some of the product lines of ALS.