CREE PAR38s?

swegyptian · 08/24/2010, 11:04 PM

Hi all,

I want to replace my refugium light with something brighter. Right now I have a 19 watt fluorescent PAR38 bulb, but I want to try one of those snazzy CREE LED ones. They seem to be available in a variety of wattages. The biggest I found was a 36 watt bulb. Would this thing be overkill? It's almost $100, so maybe I should try something smaller. Does anyone have a good guide for comparing the output from the LED and fluorescent bulbs?

TIA,
Alex

Mustang Boy · 08/25/2010, 04:44 PM

do you have any links to the bulb in question because i know of only a few companies that use CREE's in their PAR38 bulbs

evolutionracr · 08/25/2010, 06:15 PM

one of the places that sells the cree par38 bulbs sell a led refugium light and I think it is $40 was thinking of trying it out myself.

swegyptian · 08/25/2010, 10:47 PM

Here is one on ebay that I was thinking about, but it seems to use a good bit of juice. It uses three times what is typical wattage, but only about double the lumens. I might try two 12 watt lamps from someone else instead...

http://cgi.ebay.com/ws/eBayISAPI.dll...#ht_1165wt_911

TheFishMan65 · 08/26/2010, 07:51 AM

It does not say what CREE led they are using. LEDs and fluorescent seem to put out the same visible light per watt (according to an LED webinar I saw). However the LED will probably be more focused.

So do you want/need more light than you have now? I think that is what you need to decide.

08/24/2010, 11:04 PM	#1
swegyptian Registered Member Join Date: May 2003 Location: Central Illinois Posts: 991	CREE PAR38s? Hi all, I want to replace my refugium light with something brighter. Right now I have a 19 watt fluorescent PAR38 bulb, but I want to try one of those snazzy CREE LED ones. They seem to be available in a variety of wattages. The biggest I found was a 36 watt bulb. Would this thing be overkill? It's almost $100, so maybe I should try something smaller. Does anyone have a good guide for comparing the output from the LED and fluorescent bulbs? TIA, Alex

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08/25/2010, 04:44 PM	#2
Mustang Boy Registered Member Join Date: Nov 2009 Location: Tampa, Fl Posts: 1,088	do you have any links to the bulb in question because i know of only a few companies that use CREE's in their PAR38 bulbs

08/25/2010, 06:15 PM	#3
evolutionracr Registered Member Join Date: Nov 2009 Posts: 39	one of the places that sells the cree par38 bulbs sell a led refugium light and I think it is $40 was thinking of trying it out myself.

08/25/2010, 10:47 PM	#4
swegyptian Registered Member Join Date: May 2003 Location: Central Illinois Posts: 991	Here is one on ebay that I was thinking about, but it seems to use a good bit of juice. It uses three times what is typical wattage, but only about double the lumens. I might try two 12 watt lamps from someone else instead... http://cgi.ebay.com/ws/eBayISAPI.dll...#ht_1165wt_911

08/26/2010, 07:51 AM	#5
TheFishMan65 Registered Member Join Date: Aug 2009 Location: Northern VA Posts: 4,618	It does not say what CREE led they are using. LEDs and fluorescent seem to put out the same visible light per watt (according to an LED webinar I saw). However the LED will probably be more focused. So do you want/need more light than you have now? I think that is what you need to decide.