Beamswork Owners: Alert - The Planted Tank Forum
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post #1 of 43 (permalink) Old 10-02-2019, 10:42 PM Thread Starter
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Beamswork Owners: Alert

Beamswork LEDís seem to deteriorate rapidly. Iíve had my DA FSPEC a little less than two years (about 7,000 hours use - 11 hours/day). For reasons detailed in another post, I needed to take a PAR reading with my Seneye and was shocked to find PAR values have deteriorated by 25% (from 80 at the substrate down to the current 60) over the last 6-7 months. Apparently, when it goes, it goes fast. Checked and double-checked. You might be wise to check yours or, if you canít, consider the possibility that your plants are getting significantly less light in a year or so period of time. You wonít be able to notice this visually. The PUR pattern is unchanged at 63%.

As a coincidental verification, I also run an Aquaray GroBeam 600 (Cree emitters) next to the Beamswork and have run it about two years longer. The GroBeam PAR is identical to what it was four years ago. I guess quality really does matter. I was expecting to get about 3-4 years out this Beamswork, but it looks like I need to consider Beamswork to an annual disposable.

I would be very interested if other owners of the Beamswork could make comparative readings and relate their experiences. Iíd also be interested in comments from some of the lighting experts on our forum, particularly if they are aware of any life cycle comparisons among LED brands, e.g.; taking a premier product such as a Radion, do we know how long they maintain their original output? Does fading, such as this, typically occur in such a sudden way? Lastly, is it possible that my unit is uniquely failing due to another component?
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post #2 of 43 (permalink) Old 10-02-2019, 11:10 PM
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Can only speak about generalizations..
LED's do fade over time and most of this is due to heat decay.
Now that heat is at the diode itself so it's hard to measure.

Certainly is possible that the heat transfer due to 1)poor attachment and 2)cumulative due to high density/current
It's more design than diode quality really. One could just as easily "fade" a CREE w/ improper implementation though CREE (and others) are addressing the issue w/ improving heat tolerance.

http://shop.innovativelight.com/medi...83F1A8C2CC.gif

Small voltage changes do have large changes on diode output as well.
IF you want to check get a different (new, not necessarily Beamswork) power supply.

As to the gro-beam.. really low density board creating a lot of SQ inches of heat sink per diode.


There is no sure answers w/out more info...7000 hrs even with high heat is a very short time in a diodes lifespan

Added to this is phosphor decay of white led's

https://www.led-professional.com/tec...1#&gid=1&pid=4

Since they fade easier than die.. suggest getting a variable voltage power supply..cheap enough.
https://www.ledsupply.com/power-supp...l-lrs-enclosed 13.5-18V..
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post #3 of 43 (permalink) Old 10-03-2019, 02:28 AM
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Quote:
Originally Posted by Deanna View Post
Beamswork LEDís seem to deteriorate rapidly. Iíve had my DA FSPEC a little less than two years (about 7,000 hours use - 11 hours/day). For reasons detailed in another post, I needed to take a PAR reading with my Seneye and was shocked to find PAR values have deteriorated by 25% (from 80 at the substrate down to the current 60) over the last 6-7 months. Apparently, when it goes, it goes fast. Checked and double-checked. You might be wise to check yours or, if you canít, consider the possibility that your plants are getting significantly less light in a year or so period of time. You wonít be able to notice this visually. The PUR pattern is unchanged at 63%.



As a coincidental verification, I also run an Aquaray GroBeam 600 (Cree emitters) next to the Beamswork and have run it about two years longer. The GroBeam PAR is identical to what it was four years ago. I guess quality really does matter. I was expecting to get about 3-4 years out this Beamswork, but it looks like I need to consider Beamswork to an annual disposable.



I would be very interested if other owners of the Beamswork could make comparative readings and relate their experiences. Iíd also be interested in comments from some of the lighting experts on our forum, particularly if they are aware of any life cycle comparisons among LED brands, e.g.; taking a premier product such as a Radion, do we know how long they maintain their original output? Does fading, such as this, typically occur in such a sudden way? Lastly, is it possible that my unit is uniquely failing due to another component?


I changed power supplies on my finnex led fixtures and they instantly brightened. I did so because one actually failed so I decided to change out the 2nd fixture as well. Now I have fairly ďbrand newĒ 3+ year old fixtures which cost me about 5-6 bucks to fix and all thanks to a post I happened upon by our LED guru... jeffkrol!


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post #4 of 43 (permalink) Old 10-03-2019, 02:56 AM Thread Starter
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Since they fade easier than die.. suggest getting a variable voltage power supply..cheap enough.
https://www.ledsupply.com/power-supp...l-lrs-enclosed 13.5-18V..
I'd like to try this but the link takes me to a page that might as well be in Greek ...to me. What am I supposed to buy there and how is it used? When I think of a PS, I think of the brick that is used. The link seems to be components that are installed inside something.

Also, if I do this, is like going to after burners and the LED will flame out much faster?
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post #5 of 43 (permalink) Old 10-03-2019, 03:24 AM
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I'd like to try this but the link takes me to a page that might as well be in Greek ...to me. What am I supposed to buy there and how is it used? When I think of a PS, I think of the brick that is used. The link seems to be components that are installed inside something.

Also, if I do this, is like going to after burners and the LED will flame out much faster?

well this the model number..
LRS-75-15
LRS series .. 75V..15V
upper right corner.. pick voltage and wattage in the drop down. Add to cart.

check the voltage on your orig power supply .. Believe it should be 15V DC out.Likely 4A or 60Watts (volts x Amps)
Should cover all but possibly the 72" one.
Add # of diodes X .5 = est. watts..or take what's on the power supply.
A power supply w/ more wattage is not an issue. They just cost more..



As to adj. well you only need to tweak the voltage a WEE bit../
Like 15.2V or 14.5V

Point is to first see if 15V works better than current power supply. Then one can talk about increasing or decreasing output..


Too much voltage and diodes do over heat.. Should just burn out like any light bulb... Would need to go into thermal runaway where heat decreases resistance allowing a larger and large current draw.. then done..Worst case.. Best worst case.. they just decay to dimmer..


wiring is fairly straight forward.. VOM helps..
If you don't want to cut wires these should keep your Beamswork whole..
https://www.amazon.com/Chanzon-Conne.../dp/B079R9WCG2

5.5 x 2.1 size jack was fairly common for Beamswork's I believe..

Oh, yea.. that's an enclosed power supply.. Will need to wire a plug to it and of course a wire/jack to go to the light head..
Sounds complicated but it's quite simple..
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Last edited by jeffkrol; 10-03-2019 at 03:37 AM. Reason: edit
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post #6 of 43 (permalink) Old 10-03-2019, 09:11 PM Thread Starter
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well this the model number.
Good and full explanation and can now see how to do it. However, I'm now considering a new, higher quality light. If I'm going to put another ~$20 to pump up the Beamswork and it's approaching it's end-of-life, I'm thinking it may be best to replace it at this point. Haven't decided as yet.
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post #7 of 43 (permalink) Old 10-03-2019, 09:53 PM
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Good and full explanation and can now see how to do it. However, I'm now considering a new, higher quality light. If I'm going to put another ~$20 to pump up the Beamswork and it's approaching it's end-of-life, I'm thinking it may be best to replace it at this point. Haven't decided as yet.

There is currently know way of knowing thwe LED panel is near the EOF...


LED diodes do last 25,000-50,000 hours.. Other electronic parts fail..
Sadly it isn't easy testing switching power supplies..


fact it's an overall dimming not a row out or some other less "global" issue leads me to the ps thing..
I have a hard time beilieving the diodes went this bad in that short of a period of time but ????


From my point of view there isn't enough data. This is like one of the first opportunities to "test" the diodes..

Yea a little selfish..



I certainty get what you mean about throwing money at it though..

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post #8 of 43 (permalink) Old 10-03-2019, 10:35 PM Thread Starter
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There is currently know way of knowing thwe LED panel is near the EOF...


LED diodes do last 25,000-50,000 hours.. Other electronic parts fail..
Sadly it isn't easy testing switching power supplies..


fact it's an overall dimming not a row out or some other less "global" issue leads me to the ps thing..
I have a hard time beilieving the diodes went this bad in that short of a period of time but ????


From my point of view there isn't enough data. This is like one of the first opportunities to "test" the diodes..

Yea a little selfish..

I certainty get what you mean about throwing money at it though..
Well, you're turning me back to wanting to try it if, as you said, for no other reason than to test the diode thing. I'll give it a shot and report back. May have some questions when I get all this stuff, anyway
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post #9 of 43 (permalink) Old 10-04-2019, 02:34 AM Thread Starter
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Since they fade easier than die.. suggest getting a variable voltage power supply..cheap enough.
https://www.ledsupply.com/power-supp...l-lrs-enclosed 13.5-18V..
Looking into this more, I see this is open. Can't have little fingers poking around in there. Are you aware of any closed options?
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post #10 of 43 (permalink) Old 10-04-2019, 04:05 AM
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Looking into this more, I see this is open. Can't have little fingers poking around in there. Are you aware of any closed options?
https://www.onlinecomponents.com/mea...E&gclsrc=aw.ds


Can only adj voltage down though..


HLG-(watts)H-(volts)A


you could do the HLG-60H-20A (12-20V) but it tops at 3A.. Amps do increase as voltage is lowered..


Another option..

HLG-80H-20


https://www.onlinecomponents.com/mea...E&gclsrc=aw.ds

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post #11 of 43 (permalink) Old 10-04-2019, 04:42 AM Thread Starter
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https://www.onlinecomponents.com/mea...E&gclsrc=aw.ds


Can only adj voltage down though..


HLG-(watts)H-(volts)A


you could do the HLG-60H-20A (12-20V) but it tops at 3A.. Amps do increase as voltage is lowered..


Another option..

HLG-80H-20


https://www.onlinecomponents.com/mea...E&gclsrc=aw.ds
Current PS is 3A (60 diode), so that would work. however, the price point is definitely pushing me into a new fixture.
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post #12 of 43 (permalink) Old 10-04-2019, 06:04 AM
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There are cheaper.. just can't guarantee quality..
https://www.amazon.com/Adaptor-Trans.../dp/B07DD6WPLV
https://www.amazon.com/NOYITO-Adapte...HWTVVQA9R9Q25M

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post #13 of 43 (permalink) Old 10-04-2019, 09:41 AM
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If you continue to use the Beamswork, it would be great to have longer term data so that a deterioration plot can be drawn....
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post #14 of 43 (permalink) Old 10-04-2019, 01:39 PM Thread Starter
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I'll try one. Since it's in the realm of an experiment, which one would you pick?
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post #15 of 43 (permalink) Old 10-04-2019, 03:17 PM
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https://www.amazon.com/NOYITO-Adapte...HWTVVQA9R9Q25M

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