Twin-arc metal halide bulbs????

VaderWS6 · 05/04/2009, 08:02 PM

Anyone see these?

Twin-arc metal halide

Wild

raynist · 05/04/2009, 09:30 PM

I saw those last week. I am not sure if they both fire at the same time or not. Sounds like they may not.

raynist · 05/04/2009, 09:30 PM

double post

lurchccd · 05/04/2009, 10:51 PM

They do not both fire at the same time. One fires than when the balast is turned off then on, the other one fires. You could have a 20k filament and a 10k filament. Like 10k for growout when your not aroung, then the 20k for asthetics for when you are around. Great idea, i just wonder how good they are!

Nuuze · 05/04/2009, 11:15 PM

Hmmm, tagging along.

VaderWS6 · 05/12/2009, 12:02 PM

Anyone use them yet?

DarG · 05/12/2009, 12:25 PM

I heard the same thing as Lurchccd stated about them. I guess a dual 20K/20K bulb for example would double lamp life with each arc tube only running half the time ... other than that, I cant see why the combo with two of the same K arc tubes would make any sense. But if they are actually just generic quality Chinese made lamps, 100 bucks for double the lamp life isnt a very good deal. Personally, I think there are a few "brand name" chinese made halides on the market that arent any better in quality than the 30 dollar Plusrite halides that can be found on ebay and on the internet. Im not trying to make a blanket statement about all chinese made halides, just that if these are an example of two cheap halides in one envelope, the 100 dollar price tag for double lamp life isnt a good deal anyway.

One issue I see with the lamps with two different colors ... short cycling halides shortens bulb life. So if one was going to cycle them on and off to alternate color every few hours, it's not good for the lamp in terms of lifespan.

But it's an interesting concept anyway.

michael.lemke · 05/12/2009, 08:00 PM

are they making hqi or only the mogul base? interesting concept

southstar066 · 05/12/2009, 10:53 PM

The INDMAS frag swap was the first to have them come and demonstrate. They don't or ever will make a HQI because its just to much to fit into a DE. They are actually bigger than Mogul. They work how it was stated. One day they run 10k for grow and the next they run 14-20k for color.

05/04/2009, 08:02 PM	#1
VaderWS6 Registered Member Join Date: Nov 2003 Location: Kentucky Posts: 1,644	Twin-arc metal halide bulbs???? Anyone see these? Twin-arc metal halide Wild __________________ 2001 black T/A WS6~M6 ASC#6979 331rwhp/348rwtq Mods: !CAGS, Pro 5.0, TSP lid, BGRA, Raptor shift light, Strange 4.10 gears, Strano springs, SLP Bilstein shocks, GMMG exhaust Current Tank Info: Main reef:75 gallon w/ 2 250watt Radium 20k run on a PFO dual 250watt HQI ballast w/Lumenbright mini reflectors. 4 110watt VHO actinics for dawn/dusk,Geo kalkreactor,Litermeter 3,Xtreme 160 skimmer,2 Vortech mp40w's

05/04/2009, 09:30 PM	#3
raynist Registered Member Join Date: Apr 2005 Location: Pittsburgh, PA Posts: 4,921	double post Last edited by raynist; 05/04/2009 at 09:37 PM.

05/04/2009, 10:51 PM	#4
lurchccd Registered Member Join Date: Nov 2008 Location: Walnut Grove, CA Posts: 207	They do not both fire at the same time. One fires than when the balast is turned off then on, the other one fires. You could have a 20k filament and a 10k filament. Like 10k for growout when your not aroung, then the 20k for asthetics for when you are around. Great idea, i just wonder how good they are! __________________ I dont give a damn what other people think, What do you think about that?!!! "Montgomery Gentry" Current Tank Info: 110 tall sps, 2 Lumenarc 250W lit with lumenarc 14K SE. 75 gallon RR fowlr

05/12/2009, 12:02 PM	#6
VaderWS6 Registered Member Join Date: Nov 2003 Location: Kentucky Posts: 1,644	Anyone use them yet? __________________ 2001 black T/A WS6~M6 ASC#6979 331rwhp/348rwtq Mods: !CAGS, Pro 5.0, TSP lid, BGRA, Raptor shift light, Strange 4.10 gears, Strano springs, SLP Bilstein shocks, GMMG exhaust Current Tank Info: Main reef:75 gallon w/ 2 250watt Radium 20k run on a PFO dual 250watt HQI ballast w/Lumenbright mini reflectors. 4 110watt VHO actinics for dawn/dusk,Geo kalkreactor,Litermeter 3,Xtreme 160 skimmer,2 Vortech mp40w's

05/12/2009, 12:25 PM	#7
DarG Registered Member Join Date: Dec 2006 Posts: 5,515	I heard the same thing as Lurchccd stated about them. I guess a dual 20K/20K bulb for example would double lamp life with each arc tube only running half the time ... other than that, I cant see why the combo with two of the same K arc tubes would make any sense. But if they are actually just generic quality Chinese made lamps, 100 bucks for double the lamp life isnt a very good deal. Personally, I think there are a few "brand name" chinese made halides on the market that arent any better in quality than the 30 dollar Plusrite halides that can be found on ebay and on the internet. Im not trying to make a blanket statement about all chinese made halides, just that if these are an example of two cheap halides in one envelope, the 100 dollar price tag for double lamp life isnt a good deal anyway. One issue I see with the lamps with two different colors ... short cycling halides shortens bulb life. So if one was going to cycle them on and off to alternate color every few hours, it's not good for the lamp in terms of lifespan. But it's an interesting concept anyway. Last edited by DarG; 05/12/2009 at 12:31 PM.

05/04/2009, 11:15 PM	#5
Nuuze Registered Member Join Date: Sep 2000 Location: NorCal, California Posts: 3,550	Hmmm, tagging along.

05/12/2009, 08:00 PM	#8
michael.lemke Registered Member Join Date: Sep 2008 Location: greeley co Posts: 395	are they making hqi or only the mogul base? interesting concept

05/12/2009, 10:53 PM	#9
southstar066 Registered Member Join Date: Feb 2008 Location: Beech Grove Posts: 437	The INDMAS frag swap was the first to have them come and demonstrate. They don't or ever will make a HQI because its just to much to fit into a DE. They are actually bigger than Mogul. They work how it was stated. One day they run 10k for grow and the next they run 14-20k for color.