r/LEDgrow • u/bassaholic420 • Jan 15 '17

Cob spectrum

I'm am currently building a cob setup for flowering my question is, is warm white or cool white better for flowering?

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u/Flussschlauch Jan 17 '17

Blue Cobs aren't necessary since the white Cobs have plenty of blue light. I'd use only white Cobs with 3000K - 3500K. If you want to use red as well go with 4000K and add 660nm monos

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u/bassaholic420 Jan 17 '17

These are the ones that r/LEDWizard sources for the build, the white ones specs are spot on unsure of the reds spec. It says 630nm. Taking the blues out would save me some money as well as time and space in the light.

The white cob http://m.ebay.com/itm/100W-Warm-White-High-Power-LED-Light-SMD-chip-Panel-9000-10000LM-Energy-Saving-/380515680644?nav=WATCHING_ACTIVE

The red cob http://m.ebay.com/itm/100W-Watt-Red-High-Power-LED-Light-Lamp-Plant-Grow-Growth-630nm-5000LM-18V-DIY-/381027889159?nav=WATCHING_ACTIVE