Hi, make sure that you use the right pH value for the water. This is extremely important so that the plants in the soil get nutrients. It also depends on whether you have already added fertilizer to the soil or which soil you are using. Otherwise, the sensitive seedlings may suffer from root burns or an overconcentration of nutrients and salts.
But you can generally stay relaxed, pay attention to the right pH value and observe the whole thing over a few days. It may be normal for the plants to need a bit of time, it is too early to say anything more specific. Find out whether it would be better to run your lamp at 25% power and 50-100cm distance with a 250w lamp. 125w power seems a bit too much for the little ones.