Those look like Cree Red LEDs (620-630nm) and not the OSRAM (or Phillips) Far Red LEDs (660nm). From my experience, you won't get as much growth with Cree LEDs due to not being the correct spectrum.
Those look like Cree Red LEDs (620-630nm) and not the OSRAM (or Phillips) Far Red LEDs (660nm). From my experience, you won't get as much growth with Cree LEDs due to not being the correct spectrum.
Philips 660nm Deep Reds now available from Rapid LED (they dropped Osram)
How you finding the heat sink ?
have you got enough LEDS there i mean is there enough spread ?
www.heatsinkusa.com is where I get mine
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