Hey dude,hows things?,Good?!hope so man.anywho, if its in the soil jus waitin to poke up n say HEEEY!its all about the warmth man,not really lumens yet.just keep a small bulb if ya want keeping warmth near the plant.I do ,as many other growers use smaller CFL n such(heat mats too) to mantain heat prior to sprouting.hope this helps ya out.