Lenses keep popping on MH light

astranotus · 03/29/2010, 11:42 AM

I have a 3x250w DE MH light fixture that is 85" long..and have been having problems with the lenses popping and falling into my display...had 1 pop on the outside but the middle one has popped 5 times on me....last night the most recent ..the lights went out and 20min. later it popped while I was watching TV...Has anyone had this problem or know what may be the cause of this??/ I am at a loss here..just doen't make sense that it is always the same one and has happened 5 times

...they are tempered and are the lenses made to be under the MH bulbs for UV protection...Any ideas would be helpful...

reefried · 03/30/2010, 02:41 PM

i have never heard of that happening before......my pendant makes popping sounds after the bulb goes out but its just cooling down, and the glass never falls out.

HighlandReef · 03/30/2010, 03:17 PM

Maybe getting splashed with water?

astranotus · 04/03/2010, 10:40 AM

Maybe getting splashed with water? ..
Nope...8" off the surface of the tank....just the weirdest thing ..can't see why...there is no pattern or anything to go buy....even happened once when light were off..in the morning was going out for a smoke and it popped..i have cement floor so no wobbling...

returnofsid · 04/03/2010, 11:14 AM

Sounds like a heating/cooling issue. Different materials expand and contract and different rates, when heating and cooling. Sounds like your lenses are "shrinking" when cooling, and popping out of the fixture. IME, I'd contact the manufacturer. This sounds like an issue of faulty material. Maybe they'll send you new ones.

Av8bluewater · 04/03/2010, 11:16 AM

I had an Odyssea fixture that the glass would fall out like that.

03/29/2010, 11:42 AM	#1
astranotus Registered Member Join Date: Feb 2008 Location: Lincolnville, Maine Posts: 76	Lenses keep popping on MH light I have a 3x250w DE MH light fixture that is 85" long..and have been having problems with the lenses popping and falling into my display...had 1 pop on the outside but the middle one has popped 5 times on me....last night the most recent ..the lights went out and 20min. later it popped while I was watching TV...Has anyone had this problem or know what may be the cause of this??/ I am at a loss here..just doen't make sense that it is always the same one and has happened 5 times...they are tempered and are the lenses made to be under the MH bulbs for UV protection...Any ideas would be helpful...

03/30/2010, 02:41 PM	#2
reefried Registered Member Join Date: Dec 2006 Location: Norwood Ma Posts: 132	i have never heard of that happening before......my pendant makes popping sounds after the bulb goes out but its just cooling down, and the glass never falls out.

03/30/2010, 03:17 PM	#3
HighlandReef Chalice Monger Join Date: Jul 2006 Location: NW Indiana Posts: 1,163	Maybe getting splashed with water?

04/03/2010, 10:40 AM	#4
astranotus Registered Member Join Date: Feb 2008 Location: Lincolnville, Maine Posts: 76	Maybe getting splashed with water? .. Nope...8" off the surface of the tank....just the weirdest thing ..can't see why...there is no pattern or anything to go buy....even happened once when light were off..in the morning was going out for a smoke and it popped..i have cement floor so no wobbling...

04/03/2010, 11:14 AM	#5
returnofsid Registered Member Join Date: May 2006 Location: Spokane, WA Posts: 3,852	Sounds like a heating/cooling issue. Different materials expand and contract and different rates, when heating and cooling. Sounds like your lenses are "shrinking" when cooling, and popping out of the fixture. IME, I'd contact the manufacturer. This sounds like an issue of faulty material. Maybe they'll send you new ones.

04/03/2010, 11:16 AM	#6
Av8bluewater Registered Member Join Date: Sep 2008 Location: Plano, TX Posts: 763	I had an Odyssea fixture that the glass would fall out like that.