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What's a good round heatsink?

940 views 4 replies 2 participants last post by  Maryland Guppy 
#1 ·
In the upcoming months I'm going to be building 2x led pendent light fixtures for my 40 breeder high tech. I want to use 2x 50 watt led chips with lens and reflectors.

I found these

LOHAS® 50W LED Chip Cool White Bulb High Power Lamp Energy Saving Chip https://www.amazon.com/dp/B00D1GT772/ref=cm_sw_r_other_awd_D4PWwbFT2H7QB

What's your take on them? I'll be praying then with the meanwells I have from a previous project.

Thanks.
 
#3 ·
These type of COB LED's are cheaply made.
If tested with a variable power supply and slowly brought up to voltage all of the LED's inside do not always illuminate.
Light Product Circuit component Electronic engineering Engineering


Have you thought of these.
Plant Bicycle part Rim Circle Auto part


You can build a better spectrum for your plants.
Populate with 3 watt LED's, 2 discs will get you 42 watts @ 48VDC supply.

Just throwing out another idea.
 
#4 ·
These type of COB LED's are cheaply made.
If tested with a variable power supply and slowly brought up to voltage all of the LED's inside do not always illuminate.
View attachment 592681

Have you thought of these.
View attachment 592673

You can build a better spectrum for your plants.
Populate with 3 watt LED's, 2 discs will get you 42 watts @ 48VDC supply.

Just throwing out another idea.
What are those LEDs called? Brand name I mean.
 
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