Do you use a UV filter glass with your SE MHs?

GlassReef · 07/25/2009, 04:33 PM

Yes - I use a UV filter
No - I don't use a filter

DarG · 07/25/2009, 04:41 PM

The DE lamps require the glass shield because their glass envelope does not filter the UV. Actually some of the DE lamps do have UV inhibiting glass but they are all rated for enclosed fixtures (meaning they still require the glass shield) only regardless.

The glass evelope of the Mogul lamps on the other hand does inhibit the UV so no shield is required to do so.

If you are asking about Mogul lamps only ... I do use the glass anyway, to keep the reflectors from salt spray and as a safety feature preventing potential splash on the lamps and socket.

GlassReef · 07/25/2009, 04:54 PM

Quote:

Originally posted by DarG
The DE lamps require the glass shield because their glass envelope does not filter the UV. Actually some of the DE lamps do have UV inhibiting glass but they are all rated for enclosed fixtures (meaning they still require the glass shield) only regardless.

The glass evelope of the Mogul lamps on the other hand does inhibit the UV so no shield is required to do so.

If you are asking about Mogul lamps only ... I do use the glass anyway, to keep the reflectors from salt spray and as a safety feature preventing potential splash on the lamps and socket.

Thanks for pointing out the SE-DE difference. I've edited the poll's question to SE only.

GQuinn · 07/25/2009, 05:36 PM

On my old 250 watt single ended setup (Lumenmax pendant) I used the glass shields to protect the bulb and the reflector.

Gary

Kshack · 07/25/2009, 07:26 PM

I voted yes. Do not use for "filter" as much as protecting the reflector and bulb form getting dirty.

Entropy · 07/25/2009, 09:14 PM

I don't sheild my 250w SE bulb. Actually I have never used glass shields. IMo the problem with them is that they end up fogging up (salt spray) and cut down on the light getting into the tank. It is much easier for me to clean the bulb and reflector occasionally. I have my bulb less than six inches off the water surface and have never had a problem with splashing or water getting on the bulb.

Maxxumless · 07/25/2009, 09:47 PM

After I had a misshape with a PH and water sprayed up and sizzled on the bulb... Well, you get the idea.

View Poll Results: Do you use a UV filter with your metal halides?
Yes - I use a filter	5	50.00%
No - I don't use a filter	5	50.00%
Voters: 10. You may not vote on this poll

07/25/2009, 04:33 PM	#1
GlassReef Got Reef Join Date: Mar 2006 Location: Weeki Wachee, Florida Posts: 2,501	Do you use a UV filter glass with your SE MHs? Yes - I use a UV filter No - I don't use a filter __________________ Tom No matter how much you try to push the envelope, it remains stationary. Last edited by GlassReef; 07/25/2009 at 04:55 PM.

07/25/2009, 09:14 PM	#6
Entropy Texas Reefer Join Date: May 2003 Location: Round Rock, TX Posts: 13,656	I don't sheild my 250w SE bulb. Actually I have never used glass shields. IMo the problem with them is that they end up fogging up (salt spray) and cut down on the light getting into the tank. It is much easier for me to clean the bulb and reflector occasionally. I have my bulb less than six inches off the water surface and have never had a problem with splashing or water getting on the bulb. __________________ Rich Overton 150G cube FOWLR, 30g sump, ReefKeeperII, 3x Koralia 1400's, QuiteOne 3000, Reef Octopus DNWB150, 4x 30w Par38 LED. Current Tank Info: 36x36x27 150g

07/25/2009, 04:41 PM	#2
DarG Registered Member Join Date: Dec 2006 Posts: 5,515	The DE lamps require the glass shield because their glass envelope does not filter the UV. Actually some of the DE lamps do have UV inhibiting glass but they are all rated for enclosed fixtures (meaning they still require the glass shield) only regardless. The glass evelope of the Mogul lamps on the other hand does inhibit the UV so no shield is required to do so. If you are asking about Mogul lamps only ... I do use the glass anyway, to keep the reflectors from salt spray and as a safety feature preventing potential splash on the lamps and socket.

07/25/2009, 05:36 PM	#4
GQuinn Registered Member Join Date: Feb 2005 Location: Indiana Posts: 982	On my old 250 watt single ended setup (Lumenmax pendant) I used the glass shields to protect the bulb and the reflector. Gary

07/25/2009, 07:26 PM	#5
Kshack Registered Member Join Date: Jan 2006 Location: Ridgefield, WA Posts: 202	I voted yes. Do not use for "filter" as much as protecting the reflector and bulb form getting dirty.

07/25/2009, 09:47 PM	#7
Maxxumless To the Max... Join Date: Aug 2003 Posts: 2,364	After I had a misshape with a PH and water sprayed up and sizzled on the bulb... Well, you get the idea.