I am interested in using LEDs to see if they are any good for growing some test plants (VFTs) in my cellar.
I have obtained two regulators for driving two strings of four 3 Watt blue LEDs (using a 19 volt laptop power supply). Before I order the LEDs I would like to ask if anyone has experimented with them and do I need to use Red LEDs as well ?
I have obtained two regulators for driving two strings of four 3 Watt blue LEDs (using a 19 volt laptop power supply). Before I order the LEDs I would like to ask if anyone has experimented with them and do I need to use Red LEDs as well ?