Deleted member 16589
As stated the chinese ones have less true optical outputSry I'm late. What influenced you to go with the name brand LED when 3W 365nm LED's go for 10X less on ebay?
The 3 watt LED engine -------Luminous Flux/Radiant Flux: 800 mW
Chinese ebay 3 watt ------------- Luminous Intensity: 50~55mW
And I even tracked down the led manufacturer via Alibaba and the specs are the same
watch the second video in OP it shows the difference.
I needed this light to cure CRL UV 702 and the Chinese one took to long.
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