[svalli]

I noticed last year that the plants under my red-blue lights did not grow as fast as the ones under white LEDs. The colored lights are in my opinion good for plants sown early or for overwintering, because blue inhibits fast growth. These woodland tobacco plants were same size when the one on the left was put under 4500K 10W LED flood lamp, the one on right was put under the self made 6W red-blue LED light. They were planted in same soil and kept in same room except the light color was different. After two weeks there was a big difference in growth.