Ok, I have about 130 , misslabled 620nm leds. This is getting frustrating.
From China, or USA is their any reputable place were I can buy 50 660nm leds. Or should I switch into 10 watt cob leds.
On my algea scrubber as only filtration, experiment, I need about 40 leds, custom built into pvc as to not impede the fluidised flow of media.
100 leds for $30.00 seams to be price in China.