Jump to content
scrappy34

Dead LEDs?

Recommended Posts

scrappy34

I have an old kessil 360 tuna blue over my 25g

 tank with softies and LPS. Growth hasn't been good, I'm suspecting this is why? Time for a light upgrade 

 

 

Screenshot_20210918-181940.png

Screenshot_20210918-181944.png

Share this post


Link to post
Reefkid88

What channel is those leds on that are burn't out white or blue ? Also,what are you parameters,how old is the tank ect ect ? 

Share this post


Link to post
M. Tournesol

Led life span should be in the 13 years for reef tank (10h days).

 

Share this post


Link to post
M. Tournesol

Less for UV led as the technology is still in development.

Share this post


Link to post
DaJMasta
40 minutes ago, M. Tournesol said:

Led life span should be in the 13 years for reef tank (10h days).

 

This is highly dependent on heatsinking, drive current, and actual LED model.  While there are LEDs that are rated for 50k hours (or more), there are plenty of designs that are overdriven or underheatsunk for those nominal performance estimates.


As for your light, it definitely should look more regular than that.  If this image is right, you probably have two rows of LEDs out (leftmost and left of center), which would mean a single failed emitter in each row, or damage to the wires taking electricity to the rows.  Depending on the driving/control scheme, they could even be connected and just represent a failure of a channel, a failure of a driver element, or a break in a wire that connects the LEDs to the driver.  I think these light drivers are conformally coated, so I don't think repair is going to be easy even if it's not complicated, so looking for a replacement is probably a good bet.

 

20130320-kessil-a350-chip.jpg

  • Like 3
  • Thanks 1

Share this post


Link to post
Tamberav

Sadly I have found that leds do not last as long as we think they should. Largely due to components used, dust, and the very fact that these leds hang over a humid salty tank. 
 

I have seen this issue before with kessil and people have commented that you need to open it up and clean regularly as they will gather dust inside. At least once the warranty is over. Unfortunately it won’t fix an already broken light 😞 

Share this post


Link to post

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recommended Discussions

×
×
  • Create New...