Auto under hlg

First auto grow and was wondering when I should switch from t5 to my hlg 600. I want to do the early seedling stage under t5 then give it time to grow and adjust under the led as I crank the light up for flowering. Plan on putting seed into 3 gal pot.

Plant them as desired .... Run HLG , hang approx. 24” above new plants / dim power down ( 1/2 or so ) , if you have Kil a Watt meter ( you can use that to see power draw at wall when dimming ).

Run an appropriate light cycle - 24/0 - 20/4 or 18/6. I run my rig from start to finish and use height and dim capabilities to target grow stage.

Ok thanks...this will be in my veg tent as well until my other tent finishes up flowering. So I'll have photo seeds that are about 2 weeks ahead of the auto. Will it be cool to increase the light as the auto flower starts flowering with the other plants still vegging?