Glass thickness and arm mounted G4 radion

[YHSublime]

I don't know what the glass thickness is on the Mr. Aqua 11.4, but it's pretty slim.

 

I just installed a G4 XR30W Pro onto the mounting arm, and it feels like it'd be a lot of weight for the glass.

 

Did a good bit of googling around and can't find any suggested weight limits vs. glass thickness, any thoughts/advice? 

[stank]

I just broke the glass on a Fluval Flex 9 after hanging a Gen 5 XR15 on it. I set it up as a 2 day temp tank and split the entire back after two days. I felt it was too heavy but stupidly still hung it on there.

[DaJMasta]

It is a lot of weight, I don't know of particular rules of thumb, but I wouldn't do an XR30 on thin glass (maybe under 10mm), personally, and would probably want at least 1/4" for an XR15.

 

You may be able to get away with sandwiching another material over a wider surface area under the clamp, but it probably wouldn't look great, having something else to hold it up would be best.  The issues are the twisting force that will be right around the clamp when installed, but also the stress on the seams from the bending of the panel.  Remember that any bump to the tank or light would temporarily increase these stressors, since the light is a weight on the end of a cantilever.  You can reduce the force by sliding the light as close to the elbow as possible, but it's not going to be a massive reduction, an XR30 still weighs a bit.

Edited February 1 by DaJMasta

[YHSublime]

37 minutes ago, stank said:

I just broke the glass on a Fluval Flex 9 after hanging a Gen 5 XR15 on it. I set it up as a 2 day temp tank and split the entire back after two days. I felt it was too heavy but stupidly still hung it on there.

Oooof, thanks for sharing, I think it's a no go for me!

 

30 minutes ago, DaJMasta said:

It is a lot of weight, I don't know of particular rules of thumb, but I wouldn't do an XR30 on thin glass (maybe under 10mm), personally, and would probably want at least 1/4" for an XR15.

 

You may be able to get away with sandwiching another material over a wider surface area under the clamp, but it probably wouldn't look great, having something else to hold it up would be best.  The issues are the twisting force that will be right around the clamp when installed, but also the stress on the seams from the bending of the panel.  Remember that any bump to the tank or light would temporarily increase these stressors, since the light is a weight on the end of a cantilever.  You can reduce the force by sliding the light as close to the elbow as possible, but it's not going to be a massive reduction, an XR30 still weighs a bit.

 

Yeah, honestly, I'll just keep the AI I have. It's light (in both senses of the word) and it gets the job done. 

Back to the drawing board on these lights then, I don't think I have a need for them.