Will a 250w Lumenarc III with sheild glass over heat?

BSamuelson · 10/04/2007, 12:13 PM

I have two Lumenarc III reflectors for my 250W MH, but the
reflectors did not come with shield glass. I was going to buy
some plate or tempered glass for them to stop any water
splash, but there are no vents in the reflectors.

I could have a fan blow on the outside of the reflectors
and I could measure the temp inside the reflector but I have
found no guidelines as to what the ideal/max temperature is
for MH lamps. Any information or experience would be
appreciated.

Thanks,
Brian

meschaefer · 10/04/2007, 12:45 PM

how close to the water are you gong to put them. They need to be somewhat raised over the tank so that you can get good spread.

I am also unfamiliar with anybody using glass shields on lumenarcs when using a single ended bulb.

BSamuelson · 10/04/2007, 06:48 PM

The reflectors are about 6" from the water. The reflector has a track for a shield and I was thinking it would be some insurance and would make salt splash easer to clean.

Coralfreak · 10/04/2007, 07:11 PM

They should be fine, I used glass shields on mine running 400W bulbs, no problems at all. Use a fan to keep air moving around them.

10/04/2007, 12:13 PM	#1
BSamuelson Registered Member Join Date: Jun 2005 Location: Owego, NY Posts: 81	Will a 250w Lumenarc III with sheild glass over heat? I have two Lumenarc III reflectors for my 250W MH, but the reflectors did not come with shield glass. I was going to buy some plate or tempered glass for them to stop any water splash, but there are no vents in the reflectors. I could have a fan blow on the outside of the reflectors and I could measure the temp inside the reflector but I have found no guidelines as to what the ideal/max temperature is for MH lamps. Any information or experience would be appreciated. Thanks, Brian

10/04/2007, 12:45 PM	#2
meschaefer Premium Member Join Date: Jul 2001 Location: Astoria, NYC Posts: 564	how close to the water are you gong to put them. They need to be somewhat raised over the tank so that you can get good spread. I am also unfamiliar with anybody using glass shields on lumenarcs when using a single ended bulb. __________________ Matt Current Tank Info: 220 gallon w/ starphire, 120 gallon starphire sump, Skimmer DAS Ex-2, Calcium Reactor Geo 618, Trade Wind 1/2 hp compact Chiller, 2x 250 HQI Lumenarc Reflectors, Vortech mp40w, AC Jr.,

10/04/2007, 06:48 PM	#3
BSamuelson Registered Member Join Date: Jun 2005 Location: Owego, NY Posts: 81	The reflectors are about 6" from the water. The reflector has a track for a shield and I was thinking it would be some insurance and would make salt splash easer to clean. __________________ --------Brian-------- Current Tank Info: 150g x-tall soft/hard reef

10/04/2007, 07:11 PM	#4
Coralfreak Premium Member Join Date: Jul 2003 Location: Oskaloosa, IA Posts: 1,453	They should be fine, I used glass shields on mine running 400W bulbs, no problems at all. Use a fan to keep air moving around them. __________________ For more info on my tank, click on the little red house. Current Tank Info: 60gal SPS dominated Starphire cube \| 90gal sump/Mangrove fuge \| H&S A150-F2001 \| Deltec KM500 \| Deltec PF500 Ca Rx \| Deltec FR509 \| 250W DE AB10K w/Lumenarc Stealth \| 2 T5 Actinics on Icecap \| 2 Tunze 6055's w/Aquasurf \| AC III