Is 5100 K OK?

wilsonh · 02/16/2006, 03:56 AM

It's MH bulb changing time and I've been looking for some new 6500 k 150 watt DE halide bulbs, but there are none available locally, the suppliers have told me 6500k has pretty much gone out of production. They have 5100k, or 10,000k. I don't want 10,000k as i want the greater par of the lower k bulbs, does anyone know if 5100k is high enough for a corals requirements?

Mndrsn2000 · 02/16/2006, 04:12 AM

I read somewhere that Melev has a photo comparison with a 5100k bulb for his fuge. try doing a search on it.

waterfaller1 · 02/16/2006, 04:35 AM

I would go with the 10K,you won't be unhappy.

Andrew · 02/16/2006, 05:59 AM

10k is good enough and will give you a pure white look.

sealife · 02/16/2006, 07:59 AM

5100k would be way to YELLOW

Anemonebuff · 02/16/2006, 09:52 AM

The XM 10K's have a high PAR rating and are not soo yellow like 5100K. I had 5500K's when I started MH. They were good for growth, but were not pleasing to the eye. The 10K's look great.

wilsonh · 02/17/2006, 06:05 AM

Thanks for the help guys, good stuff!
It's really just an experiment to see if there will in fact be better growth with 6,500k, I'll trial it for a few months anyway, and part of the experiment will be to see what other lighting is needed to counterbalance the yellow.
Anyhow a friend has actually found some of the bulbs, so looking forward to trying it!

02/16/2006, 03:56 AM	#1
wilsonh Registered Member Join Date: May 2004 Location: New Zealand Posts: 345	Is 5100 K OK? It's MH bulb changing time and I've been looking for some new 6500 k 150 watt DE halide bulbs, but there are none available locally, the suppliers have told me 6500k has pretty much gone out of production. They have 5100k, or 10,000k. I don't want 10,000k as i want the greater par of the lower k bulbs, does anyone know if 5100k is high enough for a corals requirements?

02/16/2006, 07:59 AM	#5
sealife Registered Member Join Date: Nov 2002 Location: kingman az Posts: 560	5100k would be way to YELLOW __________________ jan 9 howard stern on sirius satellite radio Current Tank Info: 228 gal sps tank

02/16/2006, 04:12 AM	#2
Mndrsn2000 Registered Member Join Date: Dec 2005 Location: Arizona, Queen Creek Posts: 69	I read somewhere that Melev has a photo comparison with a 5100k bulb for his fuge. try doing a search on it.

02/16/2006, 04:35 AM	#3
waterfaller1 Registered Member Join Date: Jun 2003 Location: Florida Posts: 3,343	I would go with the 10K,you won't be unhappy.

02/16/2006, 05:59 AM	#4
Andrew Registered Member Join Date: Nov 2004 Location: Columbus, OH Posts: 13,640	10k is good enough and will give you a pure white look.

02/16/2006, 09:52 AM	#6
Anemonebuff Registered Member Join Date: Feb 2001 Location: LI,NY Posts: 3,877	The XM 10K's have a high PAR rating and are not soo yellow like 5100K. I had 5500K's when I started MH. They were good for growth, but were not pleasing to the eye. The 10K's look great.

02/17/2006, 06:05 AM	#7
wilsonh Registered Member Join Date: May 2004 Location: New Zealand Posts: 345	Thanks for the help guys, good stuff! It's really just an experiment to see if there will in fact be better growth with 6,500k, I'll trial it for a few months anyway, and part of the experiment will be to see what other lighting is needed to counterbalance the yellow. Anyhow a friend has actually found some of the bulbs, so looking forward to trying it!