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Melted AI prime

rygh

rygh

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Over the last few years, a few fans have died and had to be replaced.
But now the problem was fatal. It actually melted the plastic lens section!
Possible safety issue. I am a bit unsure what to do. Not going to buy a new one, that is for sure.
They usually shut themselves off on thermal overload when fans fail, but I guess not this time.
I think the melted ones are the UV.

IMG_0661.jpg
 
Way back when I even made my own fixtures, and version 1.0 had me put lenses on them, I noticed all the "UV" (violet) eventually all blackened out similar to what you see in the picture. Not sure if it's the wavelength that interacts with it, but I wouldn't be half surprised if the thing still works, hence why it didn't thermal shutdown, maybe just DIY a solution and chop out the lens for those and you still got a working fixture?
 
rygh said:
Over the last few years, a few fans have died and had to be replaced.
But now the problem was fatal. It actually melted the plastic lens section!
Possible safety issue. I am a bit unsure what to do. Not going to buy a new one, that is for sure.
They usually shut themselves off on thermal overload when fans fail, but I guess not this time.
I think the melted ones are the UV.

View attachment 27476
Click to expand...
How old was it?
 
Just thinking about my wish list for lights:
1) Last for 20 years or so.
2) Zero or very low maintenance.
3) Dead silent all the time.
4) High efficiency, low power use.

Key design features that translate to:
1) No fans
2) Fully sealed electronics
3) Keeping the junction temperature as close to room temp as possible.
4) Quality components all the way through.

None of the lights out there really match that.
No-fans and low temp is of course the hard part.

Maybe it is time to go back to a DIY light.
My first DIY light was great, except it was only Royal Blue + Cool white.
Now that the LED color mix is pretty solid, I think I do know what to build.
 
ashburn2k said:
time to move over to Kessil :)
Click to expand...
Those burn out too!

Trying to resurrect a Kessil

Alright! First, Thanks @Corallus and @Newjack for letting me take a shot at the blown Kessil. TL;DR; The light is a gonner, unless Kessil has a repair program. Before taking the light apart, I checked the resistance and continuity between the power and GND in the connector on the back of the...
www.bareefers.org
and

Trying to resurrect a Kessil #2

Back in September, I picked up a blown Kessil A160 from @Corallus , which was deemed unrepairable due to a blown switching regulator that had burned through multiple layers of the circuit board. Details here. Today, I picked up 8x A360W's from @Wlachnit to try and figure out what was going wrong.
www.bareefers.org
 
rygh said:
Just thinking about my wish list for lights:
1) Last for 20 years or so.
2) Zero or very low maintenance.
3) Dead silent all the time.
4) High efficiency, low power use.

Key design features that translate to:
1) No fans
2) Fully sealed electronics
3) Keeping the junction temperature as close to room temp as possible.
4) Quality components all the way through.

None of the lights out there really match that.
No-fans and low temp is of course the hard part.

Maybe it is time to go back to a DIY light.
My first DIY light was great, except it was only Royal Blue + Cool white.
Now that the LED color mix is pretty solid, I think I do know what to build.
Click to expand...
OOH! I can help, I can help!
 
doesn’t it throttle the fan based on temp? Or does it not have any temp sensors. Shouldn’t it turn off it above a certain temp?

I can get my kessil pretty white so maybe they’ve increased the amount of CW and WW diodes? Here’s a pic with the white turned up, unfiltered pic from iPhone 12 Pro

3A04DAD3-0E8C-456B-A1D8-299E0149130A.jpeg


But a custom TSI light could be the move :D @thesassyindian
 
max_nano said:
doesn’t it throttle the fan based on temp? Or does it not have any temp sensors. Shouldn’t it turn off it above a certain temp?

I can get my kessil pretty white so maybe they’ve increased the amount of CW and WW diodes? Here’s a pic with the white turned up, unfiltered pic from iPhone 12 Pro



But a custom TSI light could be the move :D @thesassyindian
Click to expand...
These lights are "supposed" to have thermal shutdown.
And actually, I have seen an AI prime do it when the fan failed.
But as things get coated in dust, it seems quite possible that the temp sensor is cool while another part is fried.

Yes, I have seen Kessils with white turned up.
But to me (opinions differ) that basically looks blue + white. It does not look like an even distributed spectrum with all the colors.
It is a perception and opinion thing, not saying they are "bad"
 
rygh said:
These lights are "supposed" to have thermal shutdown.
And actually, I have seen an AI prime do it when the fan failed.
But as things get coated in dust, it seems quite possible that the temp sensor is cool while another part is fried.

Yes, I have seen Kessils with white turned up.
But to me (opinions differ) that basically looks blue + white. It does not look like an even distributed spectrum with all the colors.
It is a perception and opinion thing, not saying they are "bad"
Click to expand...
They are the Cadillac's of lights. (Sorry -- couldn't resist)
 
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