Led to Hps?

I would be starting seedlings and having clones in there and veg for maybe 3-4 weeks. basically its a 135w led and it would be going to a 600w hps. My guess is that it would be to much of shock for them, I also have a few 150 hps setups. I could always do 1 135 and 1 150 or just 2 150w hps but then I feel that that would be to much for what I would want. Any suggestions on what I should do or how you would go about this with these materials. the tent is a its either a 3x2x5ft tent or a 4x2x5 tent, cant remember havnt set it up yet. and I also have a 2x2 tent.

Moving them from led to hid at 4 weeks sounds good just hang the light further away the first few days so they adjust.

well I will have it as a perpetual so the light will be at its highest spot where it still is effective to both the most mature and then ones that were just put in there, I just didn't know if that would be to much of a shock for it, but thankyou.

That will work to but just remember that the light can fry your plants if Hung too close and a 600 w inside of a tent or small space must be vented correctly or it will result in dead plants or fire

I got it as a air cooled hood pullin air from inside the room through the hood out to the exhaust fan and filter, in the room its in the temp never gets higher then 86 lights on in the summerwith no ac and full power.

I would have my intake and exaust coming/going from outside .

I have a passive air intake with the exhaust, temps in tent rarely get above 85, the room its in doesn't get above 70 I have yet to have a heat issue in this new spot for the past year.

I go straight from my LED veg tent to a 1000w hps and have never seen any issues. I always just put them at least 3ft away from the light for the first 2 days then they are moved to 15" to 18" from the 1000w light