Cutter Electronics: Complete DIY COB kits

CoB_nUt

CoB_nUt

Well-Known Member
@welight, Is this an issue with the sinks? Took the bar down to lengthen it and noticed this on 3 of them with the 4th just starting. Checked them last night and niw the discoloration is appearing on one of the sinks fins. DSCN3850.JPGDSCN3856.JPG
 
CoB_nUt

CoB_nUt

Well-Known Member
@welight should I be worried about the discoloration? These are cutter sinks. Not bashing, just not sure if this is an issue. They are also hotter than my other sinks.
 
welight

welight

Well-Known Member
CoB_nUt said:
@welight should I be worried about the discoloration? These are cutter sinks. Not bashing, just not sure if this is an issue. They are also hotter than my other sinks.
Click to expand...
Hi CoB_nUt
Sorry for delay, on leave currently. To be honest never seen that before. I have seen anodising on automotive heatsinks exposed to UV change colour but not coolers for indoor lighting, should have no impact on thermal performance but of course does not look pretty, interesting how its a perfect strip of discolour, can I assume the black is where the mounting rail sits? if so that seems to point to exposure to something that is causing this. These are the 110mm made by Mechatronix, I will ask their tech team what may cause this and advise
Cheers
Mark
 
G

goofy81

Well-Known Member
I had discoloration when I had a heatsink a few inches away from a metal halide. I thought it looked cool to be honest. My lights are running fine still so it shouldn't affect cooling.
 
CoB_nUt

CoB_nUt

Well-Known Member
welight said:
Hi CoB_nUt
Sorry for delay, on leave currently. To be honest never seen that before. I have seen anodising on automotive heatsinks exposed to UV change colour but not coolers for indoor lighting, should have no impact on thermal performance but of course does not look pretty, interesting how its a perfect strip of discolour, can I assume the black is where the mounting rail sits? if so that seems to point to exposure to something that is causing this. These are the 110mm made by Mechatronix, I will ask their tech team what may cause this and advise
Cheers
Mark
Click to expand...
mark, thank you for the reply. Apologies for the interruption in your vacay. Yes the black is where the alum angle sits. Good, I was only concerned about the thermal performance. Aesthetics aren't my concern. Appreciate the feed back.
sixstring2112 said:
sulfer burner maybe ? or uv lamps,or even a ozone generator ?
Click to expand...
Nah, no fancy smancy extras lol... simple guy simple grows. Thank you sixstring.

goofy81 said:
I had discoloration when I had a heatsink a few inches away from a metal halide. I thought it looked cool to be honest. My lights are running fine still so it shouldn't affect cooling.
Click to expand...
Thanks.I did have another fixture with some red/blue monos as well as a few 10w cree xmls a few inches above it. There was cast of light onto the cob bar,but the cobs are facing down and the light was hitting the driver and the fins on the sinks. thanks goofy.

I appreciate the responses and feedback. Wasn't going to fire it back up until I knew the cobs were
not at risk. Should've done it and fried 'em, that way I have an exscuse to build a new rig with the newer chips. Now that I am addicted to building them.
 
noma

noma

New Member
hey.. sent an email few days back but didn't receive response yet.. any news about the growmau kits?
thanx!
 
noma

noma

New Member
welight said:
no worries, can you PM me so I can check your email
Cheers
Mark
Click to expand...
kinda hard since i don't have pm privileges yet!
:rolleyes:
anyway i asked if the MAU5-IV-NPS Grow Kit will be available again, if the MW HLG-185H-C1400B driver fits that setup and if you can provide lenses along with that..
thank u!
 
iLL1

iLL1

Active Member
so. .. any news about the growmau kits?
noma said:
kinda hard since i don't have pm privileges yet!
:rolleyes:
anyway i asked if the MAU5-IV-NPS Grow Kit will be available again, if the MW HLG-185H-C1400B driver fits that setup and if you can provide lenses along with that..
thank u!
Click to expand...

Funny i was wondering the same thing ... or maybe another kit
 
welight

welight

Well-Known Member
Yes the HLG-185H-C1400B is max 143V output so will just cover the MAU5-IV-NPS, the kit comes with Angelina reflectors or do you actually want glass optics?
Cheers
Mark
 
welight

welight

Well-Known Member
CoB_nUt said:
@welight, any answer back from the manufacturer?
Click to expand...
They cant be totally sure but advise it is something in your environment that is affecting the anodising in combination with the heat, they advise it will not impact on thermal properties but it does not look pristine obviously
Cheers
Mark
 
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