Dual 175 10000K different colors

ROB2005 · 04/27/2006, 08:50 PM

hi there i just got my shipment of two 175W 10000K metal halide bulbs from InsideSun upon full brightness one of my bulbs has a different color look to it one is crisp white ( white with a tinge of blue) and the other is daylight white ( white with a slight yellow hue) shud i send for replacement or just wait till the salts in the latter bulb stabilizes to give a uniform color look? help is appreciated

KEstep · 04/27/2006, 09:12 PM

Sometimes they never will be the same, I have two 150 watt 14ks, and sometimes one will turn a pinkish white color while the other is a blue/white.

ROB2005 · 04/27/2006, 09:18 PM

Quote:

Originally posted by KEstep
Sometimes they never will be the same, I have two 150 watt 14ks, and sometimes one will turn a pinkish white color while the other is a blue/white.

i guess you dont mind do you...it just makes my tank look half cool white hlf warm white...I guess i will grit my teeth and bear it

KEstep · 04/27/2006, 09:28 PM

It is a hit or miss with my bulbs and most of the time they are the same or barely off and that does not bother me, but there are days that I get really ticked off about it. I have tried other bulbs but it is hard to get an exact match with mine.

tripstank · 04/27/2006, 11:11 PM

Are they brand new bulbs? It takes about 100 hours for MH bulbs to stabalize.

uscgbeachbum · 04/28/2006, 06:24 AM

I had this problem with my XM 10ks. Look INSIDE the bulb and you'll see another glass bulb with a nub on it. That nub MUST be pointing in the same direction on both bulbs. Remember, if your sockets are oriented differently...say one going <--- and the other going ---> that the numbs need to be 180 deg from eachother if not pointing directly up or down.

Nathan · 04/28/2006, 07:37 AM

The "nub" or "nipple" ideally should be pointing up on all MH bulbs unless they are mounted vertically.

It has something to do with the pooling of gasses around the nipple area.

Here you can see what happens when one bulb has nipple up, and one down.

Another pic

-Nathan

ROB2005 · 04/28/2006, 08:19 AM

oh so that little nipple on the halide capsule has to be pointing up in order to make a difference and yes those are brand new bulbs

Nathan · 04/28/2006, 08:42 AM

Yes. The nipple should be pointing up. Some bulbs are more sensitive to this than others.

Also, if you have been running them for a while with the nipple down, then it may take several days for the gasses to adjust... so be patient.

What brand of bulb are you using?

-Nathan

ROB2005 · 04/28/2006, 08:46 AM

I had gotten them from InsideSun, they are called PlusRite metal halide bulbs.

04/27/2006, 08:50 PM	#1
ROB2005 Reefing Is My Passion! Join Date: Dec 2004 Location: Miami, FL Posts: 719	Dual 175 10000K different colors hi there i just got my shipment of two 175W 10000K metal halide bulbs from InsideSun upon full brightness one of my bulbs has a different color look to it one is crisp white ( white with a tinge of blue) and the other is daylight white ( white with a slight yellow hue) shud i send for replacement or just wait till the salts in the latter bulb stabilizes to give a uniform color look? help is appreciated

04/27/2006, 09:12 PM	#2
KEstep Premium Member Join Date: Sep 2005 Location: Amarillo, TX Posts: 550	Sometimes they never will be the same, I have two 150 watt 14ks, and sometimes one will turn a pinkish white color while the other is a blue/white. __________________ A bartender is just a pharmacist with limited inventory. If you drink don't park, accidents cause people. If only closed minds came with closed mouths. Have a great day. Kris Current Tank Info: 150g. DAS Oak Aquarium, 3 250w. Reeflux 10k on Coralvue Dimmable E-ballasts, 150lbs. Live Rock, DAS EX-2 Skimmer, Remote Deep Sand Bucket, Reefkeeper 2, 10 gallon fuge, 2 Vortechs, Coralvue Dual Chamber Calcium Reactor, Coralvue Kalkwasser Reactor.

04/27/2006, 09:28 PM	#4
KEstep Premium Member Join Date: Sep 2005 Location: Amarillo, TX Posts: 550	It is a hit or miss with my bulbs and most of the time they are the same or barely off and that does not bother me, but there are days that I get really ticked off about it. I have tried other bulbs but it is hard to get an exact match with mine. __________________ A bartender is just a pharmacist with limited inventory. If you drink don't park, accidents cause people. If only closed minds came with closed mouths. Have a great day. Kris Current Tank Info: 150g. DAS Oak Aquarium, 3 250w. Reeflux 10k on Coralvue Dimmable E-ballasts, 150lbs. Live Rock, DAS EX-2 Skimmer, Remote Deep Sand Bucket, Reefkeeper 2, 10 gallon fuge, 2 Vortechs, Coralvue Dual Chamber Calcium Reactor, Coralvue Kalkwasser Reactor.

04/27/2006, 11:11 PM	#5
tripstank Registered Member. Join Date: Mar 2004 Location: Brooklyn, NY Posts: 488	Are they brand new bulbs? It takes about 100 hours for MH bulbs to stabalize. __________________ Not to point fingers, but.................... Current Tank Info: Coral Prop troughs

04/28/2006, 06:24 AM	#6
uscgbeachbum Registered Member Join Date: Aug 2003 Location: Austin, TX Posts: 823	I had this problem with my XM 10ks. Look INSIDE the bulb and you'll see another glass bulb with a nub on it. That nub MUST be pointing in the same direction on both bulbs. Remember, if your sockets are oriented differently...say one going <--- and the other going ---> that the numbs need to be 180 deg from eachother if not pointing directly up or down. __________________ If someone wrote a book about your life would anyone want to read it? Current Tank Info: 42x30x19 peninsula, custom 8020 stand and lightbar, custom BAO sump, RLSS R6i skimmer, Waveline DC6000 pump, Maxspect Gyre, 2xKessil A360WE, full Apex

04/28/2006, 07:37 AM	#7
Nathan Premium Member Join Date: Mar 2000 Location: Newtown, Pa., USA Posts: 1,454	The "nub" or "nipple" ideally should be pointing up on all MH bulbs unless they are mounted vertically. It has something to do with the pooling of gasses around the nipple area. Here you can see what happens when one bulb has nipple up, and one down. Another pic -Nathan

04/28/2006, 08:19 AM	#8
ROB2005 Reefing Is My Passion! Join Date: Dec 2004 Location: Miami, FL Posts: 719	oh so that little nipple on the halide capsule has to be pointing up in order to make a difference and yes those are brand new bulbs __________________ If at first you don't succeed at reefing, break it down and set back up😁 Current Tank Info: 75 gallon corner overflow, 4-54W T-5 , dozen blue hermits, tiger pistol/yellow watchman goby, royal gramma, banghai and pajama cardinals

04/28/2006, 08:42 AM	#9
Nathan Premium Member Join Date: Mar 2000 Location: Newtown, Pa., USA Posts: 1,454	Yes. The nipple should be pointing up. Some bulbs are more sensitive to this than others. Also, if you have been running them for a while with the nipple down, then it may take several days for the gasses to adjust... so be patient. What brand of bulb are you using? -Nathan

04/28/2006, 08:46 AM	#10
ROB2005 Reefing Is My Passion! Join Date: Dec 2004 Location: Miami, FL Posts: 719	I had gotten them from InsideSun, they are called PlusRite metal halide bulbs. __________________ If at first you don't succeed at reefing, break it down and set back up😁 Current Tank Info: 75 gallon corner overflow, 4-54W T-5 , dozen blue hermits, tiger pistol/yellow watchman goby, royal gramma, banghai and pajama cardinals