Electronics > Projects, Designs, and Technical Stuff
Better Quality 50W COB LED?
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The Doktor:
I've got a friend with about 20 of the cheap ebay/amazon 50W floodlights. COBs drop like flies. Lifetime a few days to a few months, seem to last longest if always on. I've been getting him 100W cheapo COBs off ebay as replacements and running them at 50W. It's easy, both COBs are same voltage but 100W is "rated" for twice the current and has twice the LEDs in it. Price is only slightly higher, and so far no failures after about a year. Don't forget the thermal paste!
Psi:
Well, its been a week and my other 50W Yuji LED died in exactly the same way as the first one.
Not sure what's going on.
Maybe my MeanWell psu is putting out spikes, or maybe the batch just had weak bond wires. Im not sure.

I don't think i will ask Yuji for another replacement. Seems kinda unfair for them to pay for shipping twice.
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