today it is 13 days old, with a 40w utility LED bulb at 40cm, recommendations? \n\n
Welcome to the community !!! that start looks really good ..
Welcome to the community 
Nice to see how good your start is looking
Is that a 40-watt lamp? As far as I know, you can safely move it closer to the plant. 20 cm would be a safe distance range here
Best regards and Happy Grow
